Experienced and professional animal trainer provide their insights in answering this question :
A. I would not be overly concerned. Rabbits have very concentrated urine often with a lot of sediment. That is the white substance you are seeing.

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

Healthy rabbits excrete excess calcium salts via the renal system, and this can give the urine a chalky or opaque appearance. The urine will often dry to a white, chalky residue. Unless the residue is thick, pasty, and the color of mustard powder, this is normal, and should not be considered “sludge.”
The calcium carbonate is the white residue seen on the cage paper after the urine is dry. If you touch this residue it feels like chalk. Rabbits may have developed this very efficient way of absorbing calcium out of the diet because of the environments in which they evolved.
Urine from healthy animals is typically considered to be of little to no risk to people. This is generally true, at least for the otherwise healthy human population, but like with most things in infectious diseases, there are exceptions. An interesting one in rabbits is a bug called Encephalitozoon cuniculi.
Vaginal discharge is not a common or normal occurrence in rabbits, and is normally taken to be a sign of infection or illness. Vaginal discharge includes any substance that comes from the vulvar labia, or vaginal area, including fresh blood or blood tinged fluid.
Normal rabbit urine will vary from a pale yellow or clear colour, through various orange and brown colours, right up to a deep red colour. Rabbit urine may also look cloudy due to the presence of calcium carbonate being excreted within the urine.
Normal rabbit urine can range greatly in color. It can be pale yellow, dark yellow, a range of oranges, browns, and even rusty red. There are many factors including genetics and diet. Even though it ranges in color, normal urine is always watery and not thick.
Small white worms (5-10mm long) on the anus or in the faeces. Young rabbits (especially when weaned) can be more severely infected; signs include diarrhoea, lethargy and substantial weight loss.
Rabbit urine can be removed from most surfaces using pure white vinegar or a diluted white vinegar solution. Tough or dried stains may need some time to soak, or they will require the use of stronger chemical cleaners.
Individuals with exposure to rabbits and rabbit housing environments may develop allergic reactions to animal proteins (allergens). Allergies to rabbit hair, saliva, urine and dander are well documented.
If your rabbit is pooping/spraying pee everywhere, this is probably due to your rabbit marking his territory. It`s a good idea to get your rabbit spayed/neutered in order to ease territorial feelings. Sometimes rabbits deliberately pee on your couch or bed because they`re showing you who`s Top Bunny in the house.
An abscess is an accumulation of pus surrounded by thickened, inflamed tissue. They occur frequently in rabbits. Rabbit abscesses are difficult to treat because the dense inflamed wall or capsule surrounding the abscess and thick rabbit pus prevent antibiotics penetrating the infected tissue.
Symptoms will vary greatly depending on what the cause of your rabbit`s snuffles are. The main symptom you may notice your rabbit is experiencing is going to be discharge from his nose. This may be anywhere from a thin, clear discharge to a thick white mucus.
Colour. A rabbit`s poo should be medium green, dark green, dark brown, or almost black. Cecotropes tend to be brown. They also have a glossy surface.
Yellow: This is a normal urine color. Amber/Orange: This is a normal urine color, but if your rabbit isn`t drinking as much as it should, this may be why it is darker than usual color. Ensure your rabbit has a water bowl and bottle to drink from and is eating its greens.
The beauty of it is that rabbit urine has no expiry date as long as it is kept covered after harvesting to preserve ammonia.
On average rabbits will drink 50-150 ml/kg/day, so a large 5 kg rabbit will normally drink up to 750 ml each day, so anything over that could be abnormal. Similarly, normal urine production is about 120-130 ml/kg/day, so a large 5 kg rabbit will urinate as much as 650 ml per day, so anything over that may be abnormal.
Unlike dogs and cats, rabbits generally do not require vaccinations. In rare instances, where rabbits live in areas endemic to the serious, often life-threatening conditions viral hemorrhagic disease or myxomatosis virus infection, some veterinarians will recommend vaccinating a prevent these illnesses.
What about my health? Rabbit tapeworms cannot be passed to humans unless rabbit meat is eaten and undercooked, so this is not a health concern for the average pet rabbit owner! The rabbit pinworm is a different species to that which is found in humans.
The entire tapeworm is quite long, 6 inches or more in length, which most people find surprising as all they usually see are the small egg sac segments which are about the size of a sesame seed or grain of rice. The segments are very flat, like a piece of tape, hence the name of the worm.
Sometimes, the tapeworm leaves the body on its own. This is why some people never have symptoms or only have mild symptoms. If a tapeworm doesn`t leave your body, your doctor will recommend a treatment based on the type of infection.
White vinegar has special properties that keep it from lifting color out of carpets and fabrics, but has enough acidity to neutralize the urine smell. The greatest thing about vinegar is that it is all natural and completely safe for pets and humans. If there is a lot of urine still present, blot up as much as you can.
It is usually safe to kiss a rabbit, and many pets enjoy this display of love. Rabbits do not kiss each other, but can learn what kissing means. If grooming precedes the kiss, your intention will be clear. Many rabbits enjoy being kissed on the top of the head.
Licking is a way bunnies groom each other. If your bunny licks you, it`s a sign of affection as you`ll often see pairs of bunnies grooming each other this way. A bunny lick is a sign of a bond.
Do rabbits smell? In general healthy rabbits don`t smell bad at all. For most rabbits, as long as you regularly clean the litter box and cage, you won`t have to worry about having a smelly house.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. How do I determine how much my overweight pet should weigh?
ANSWER : A. There are many tools to determine overweight and obesity levels in pets. A new tool, morphometric measurements and body fat index, are available to accurately determine a pet’s ideal weight; this will allow an accurate determination of the amount of food a pet should receive to achieve weight loss. Feeding the correct amount will lead to greater weight loss success.

There are many weight loss food options to help pets reach their ideal weight. Your veterinarian can help make a ideal weight recommendation. Here are some tips to help your dog lose weight in a healthy and safe way:

1. Diet: Providing a healthy and well balanced diet is essential to your pet’s overall health. Finding the right food for your dog can be a challenging process. For those overweight animals many commercial dog companies offer weight loss diets, but it is important to evaluate food labels for adequate nutritional content.

You want to ensure you are not missing other essential vitamin or mineral content. Volume of food is also important and the amount of food that works for one breed of dog may not be the same for another breed of dog. Portion control as opposed to free-choice feeding can help your dog to drop a few unnecessary pounds.

There are also prescription weight loss foods designed by veterinary nutritionists, such as Hill’s r/d (http://bit.ly/1AoENSd). Some pet owners find that home cooking is the best option for helping to provide a well-balanced and realistic diet plan. There are websites such as balanceit.com that offers recipes to fit your dog’s specific needs. Consulting with your veterinarian or a veterinary nutritionist to find the appropriate diet is a great way to help your dog be as healthy as possible.

2. Exercise: Another great tactic for weight loss for your dog is exercise. Whether this is through running, walking or playing with a favorite toy all of these are wonderful types of exercise to help keep your dog at a lean and healthy weight.

For those pet owners with busy schedules utilizing professional dog walking services or playtime through dog daycare services is another option. It has been shown that those pet owners that exercise regularly with their pets generally live a healthier lifestyle.

3. Physical therapy: As animals age pet owners offer encounter their favorite canine having more difficulty walking and have a dwindling desire to play with toys. Physical therapy, specifically hydrotherapy is a wonderful way to help older and arthritic animals gain more mobility and lose weight. Hydrotherapy has been proven to have several therapeutic effects on the body including, muscle strengthening, relief of swelling, decreased joint pain, less stiffness in limbs, improved circulation, weight loss, and increased tissue healing to name a few. For more information on the benefits of hydrotherapy:
http://bit.ly/1w1qqoy

4. Veterinary visit and blood work: Weight gain can also be related to underlying health concerns such as hypothyroidism or other endocrine disorders. Scheduling a veterinary evaluation and routine blood work can be another important component in increasing the longevity of your dog’s life. Conditions such as hypothyroidism that predispose dogs to gain weight can be treated with a daily medication to improve hormonal balance. If feel that your dog is unnecessarily overweight there can be an underlying health condition that needs to be addressed.

5. Healthy treats: Pet owners love the chance to reward their favorite canine companion with treats and most dogs jump at the chance to consume these delicious products. The problem is many treats, which can include commercial dog treats or table scrapes can add many unnecessary calories to your dog’s daily intake. Reading labels and making note of the calories in these treats is an important component of understanding your dog’s overall health. Treats should not exceed more than 10 percent of your pet’s daily calories. There are healthier treats that can be offered to your pet to keep calories lower yet provide a fuller sensation. A pet owner can add steamed or pureed vegetables, such as carrots, green beans or sweet potato to add more fiber and thus a fuller feeling for your dog.

Q. My cat is excessively scrstching herself., to the point she has sores. She is strictly an indoor cat. Did have flees been treated for 2 months
ANSWER : A. For every flea you see on your pet, there are 100 more in the environment. Get your pet on a good topical or oral flea control through your vet. In flea control, you get what you pay for. Consider asking your vet for a dose of Capstar. It helps get the problem under control by killing the fleas on the pet starting in five minutes but only lasts for 24 hours.

You need to treat your home environment. If you use a pest control service, tell them you are having a flea problem and they can adjust their treatment. Use a premise spray that also contains an IGR, insect growth regulator. This keeps eggs and larvae from maturing into adults and helps break the life cycle. Also, vacuum EVERY DAY, throwing out the bag or emptying the canister every time into an outside receptacle and spraying the contents with insecticide to kill the fleas you’ve vacuumed up.

Treat your yard too, since fleas are opportunistic and will hop a ride into your home on your pant leg without you knowing it. Concentrate on areas under bushes, in the shade. Fleas are less likely to be located in open sunny areas where it gets hot.

If chemicals are a problem, you can use borax. Sprinkle it into rugs, into corners and under furniture, use a broom to work it into the fibers and let it sit for hours, days even. It won’t hurt you or your pet to have it present. Then vacuum it up, reapply as needed. Food grade diatomaceous earth can be gotten from a health food store and worked into the rugs and corners in the same way as borax. These treatments aren’t as fast and effective as chemical insecticides but they can help.

You might want to consider boarding your pet for the day at your vet, to give you the opportunity to flea bomb your house without having to worry about your pet being exposed. They can bathe your pet and give a dose of Capstar while you treat your home.

Be patient, you may have to repeat these steps multiple times 10-14 days apart to help break the flea life cycle.

Skin problems can have a variety of causes, sometimes more than one. It is important to have the problem checked by your vet to determine if there is a medical cause for your pet’s skin issues and treat accordingly.

In pets of all ages, fleas, food allergies and exposure to chemical irritants such as cleaners and soaps can be a cause. Any one of these may not be enough to trigger the breakouts, depending on how sensitive your pet is, but a combination can be enough to start the itch-scratch cycle. Finding out the cause and eliminating it is the best course of action. With flea allergies, if your pet is sensitive enough, a single bite can cause them to break out scratch enough to tear their skin.

Check for fleas with a flea comb. Look for fleas and/or tiny black granules, like coarse black pepper. This is flea feces, consisting of digested, dried blood. You may find tiny white particles, like salt, which are the flea eggs. Applying a good topical monthly flea treatment and aggressively treating your house and yard will help break the flea life cycle.

If you use plastic bowls, this is a possible cause for hair loss, though this tends to be on the chin, where their skin touches the bowl while they eat. If you suspect this to be the culprit, try changing the bowls to glass, metal or ceramic.

Food allergies are often caused by sensitivity to a protein in the food. Hill’s Science Diet offers some non-prescription options for sensitive skin as well as prescription hypoallergenic foods for more severe cases. Royal Canin carries limited protein diets that may also offer some relief. Your vet can recommend a specific diet that will help.

If there is no relief or not enough, consider getting your pet checked by a veterinary dermatologist and having allergy testing done.

Q. I just got my pet bunny about a week and a half ago..she has white stuff through out her pee ..should I be concerned!?????
ANSWER : A. I would not be overly concerned. Rabbits have very concentrated urine often with a lot of sediment. That is the white substance you are seeing.

Q. Frontline is not working on my dog, what should I use?
ANSWER : A. Frontline works best if it is given either three days before or three days after bathing your pet as it is absorbed through the skin. Frontline works on pets, but you will need to continually give treatment for up to three months before the environment and your pet are fully flea-free. Your pet can continue to get fleas from the environment as the eggs hatch and attempt to jump on your pet. Making sure to clean the area your pet is in, such as washing bedding and vacuuming carpeting (especially areas with cracks such as along the wall) can also accelerate flea removal. If your pet still has fleas and you want immediate relief, your vet can provide you with an oral medication such as capstar to kill fleas depending on when the last Frontline dose was given.

Pets can continue to itch for a while even after the fleas themselves are treated. Flea bites can cause an allergy, called flea allergy dermatitis, which can cause itching, scratching and redness on the skin. While many owners think this means fleas are still there, it could just be the skin healing from bites. An allergy medication and preventing your pet from scratching can provide relief during the healing process.

Read Full Q/A … : FAQ

Q. My dog has 4 lumps in her belly she won’t move I don’t have money for a vet what can I do to make her pain easier
ANSWER : A. If you are in financial difficulty, there are ways of still getting your pet treated by a veterinarian. Ask if they take Care Credit and apply online. This is a credit card specifically for medical, dental, and veterinary expenses.

Call a local animal shelter and ask if they have a low-cost pet clinic that works with people with limited incomes or call a college of veterinary medicine in your area and ask about a low- or no-cost veterinary care program.

GiveForward and Youcaring.com are crowd funding websites that help you raise money to help take care of your pets

Harley’s Hope Foundation is an organization that ensures low income pet parents and their companion or service animals remain together when issues arise.

Many breed rescues and groups have specials funds available for owners who need financial assistance, such as the Special Needs Dobermans, Labrador Lifeline, and Pitbull Rescue Central.

Banfield Pet Hospital has its own programs for owners that can’t afford their pet’s care.

The Onyx & Breezy Foundation has many programs including helping people with medical bills. They are a good resource for information.

Brown Dog Foundation provides funding to families with a sick pet that would likely respond to treatment, but due to circumstances, there is not enough money immediately available to pay.

Some groups help with specific disease, such as Canine Cancer Awareness, The Magic Bullet Fund, Helping Harley Fund, and Muffin Diabetes Fund.

The Pet Fund and Redrover.org are great sources for help to care for your pet.

The Humane Society website has many links to other organizations that help with veterinary expenses.

Q. I have a kitten (about 3 months old) who’s ear is red and squishy sounding today (just started today) I can’t afford to go to a vet, what can I do?
ANSWER : A. If you are in financial difficulty, there are ways of still getting your pet treated by a veterinarian. Ask if they take Care Credit and apply online. This is a credit card specifically for medical, dental, and veterinary expenses.

Call a local animal shelter and ask if they have a low-cost pet clinic that works with people with limited incomes or call a college of veterinary medicine in your area and ask about a low- or no-cost veterinary care program.

GiveForward and Youcaring.com are crowd funding websites that help you raise money to help take care of your pets

Harley’s Hope Foundation is an organization that ensures low income pet parents and their companion or service animals remain together when issues arise.

Many breed rescues and groups have specials funds available for owners who need financial assistance, such as the Special Needs Dobermans, Labrador Lifeline, and Pitbull Rescue Central.

Banfield Pet Hospital has its own programs for owners that can’t afford their pet’s care.

The Onyx & Breezy Foundation has many programs including helping people with medical bills. They are a good resource for information.

Brown Dog Foundation provides funding to families with a sick pet that would likely respond to treatment, but due to circumstances, there is not enough money immediately available to pay.

Some groups help with specific disease, such as Canine Cancer Awareness, The Magic Bullet Fund, Helping Harley Fund, and Muffin Diabetes Fund.

The Pet Fund and Redrover.org are great sources for help to care for your pet.

The Humane Society website has many links to other organizations that help with veterinary expenses.

Q. My cat has a small bump by his ear and his ear is swollen what can I do. Cant afford to take to vet until after the first of the year
ANSWER : A. If you are in financial difficulty, there are ways of still getting your pet treated by a veterinarian. Ask if they take Care Credit and apply online. This is a credit card specifically for medical, dental, and veterinary expenses.

Call a local animal shelter and ask if they have a low-cost pet clinic that works with people with limited incomes or call a college of veterinary medicine in your area and ask about a low- or no-cost veterinary care program.

GiveForward and Youcaring.com are crowd funding websites that help you raise money to help take care of your pets

Harley’s Hope Foundation is an organization that ensures low income pet parents and their companion or service animals remain together when issues arise.

Many breed rescues and groups have specials funds available for owners who need financial assistance, such as the Special Needs Dobermans, Labrador Lifeline, and Pitbull Rescue Central.

Banfield Pet Hospital has its own programs for owners that can’t afford their pet’s care.

The Onyx & Breezy Foundation has many programs including helping people with medical bills. They are a good resource for information.

Brown Dog Foundation provides funding to families with a sick pet that would likely respond to treatment, but due to circumstances, there is not enough money immediately available to pay.

Some groups help with specific disease, such as Canine Cancer Awareness, The Magic Bullet Fund, Helping Harley Fund, and Muffin Diabetes Fund.

The Pet Fund and Redrover.org are great sources for help to care for your pet.

The Humane Society website has many links to other organizations that help with veterinary expenses.

Q. Eye discharge, occasional sneezing. Need over the counter solution. Cannot afford vet. Roughly 3 months old, 3lb
ANSWER : A. If you are in financial difficulty, there are ways of still getting your pet treated by a veterinarian. Ask if they take Care Credit and apply online. This is a credit card specifically for medical, dental, and veterinary expenses.

Call a local animal shelter and ask if they have a low-cost pet clinic that works with people with limited incomes or call a college of veterinary medicine in your area and ask about a low- or no-cost veterinary care program.

GiveForward and Youcaring.com are crowd funding websites that help you raise money to help take care of your pets

Harley’s Hope Foundation is an organization that ensures low income pet parents and their companion or service animals remain together when issues arise.

Many breed rescues and groups have specials funds available for owners who need financial assistance, such as the Special Needs Dobermans, Labrador Lifeline, and Pitbull Rescue Central.

Banfield Pet Hospital has its own programs for owners that can’t afford their pet’s care.

The Onyx & Breezy Foundation has many programs including helping people with medical bills. They are a good resource for information.

Brown Dog Foundation provides funding to families with a sick pet that would likely respond to treatment, but due to circumstances, there is not enough money immediately available to pay.

Some groups help with specific disease, such as Canine Cancer Awareness, The Magic Bullet Fund, Helping Harley Fund, and Muffin Diabetes Fund.

The Pet Fund and Redrover.org are great sources for help to care for your pet.

The Humane Society website has many links to other organizations that help with veterinary expenses.

Read Full Q/A … : Vetinfo