Experienced and professional animal trainer provide their insights in answering this question :
A. Blood near the rear can be caused by a number of things. Bright red blood in the stool or around the anus can indicate a problem with the colon or anal region such as constipation, tears, illness or problems with the anal glands.

Blood that is dark or black in the stool can indicate a problem with the upper intestines such as the stomach or small intestine. This is usually considered more serious than bright red stool, however any blood seen is cause for concern. If the blood is seen more than once or twice, making a vet appointment is a must.

If your dog is not eating and is having blood in either her stool or vomit, making an appointment with your local vet is best. Illness, digestive upset or problems with internal organs can all cause these symptoms. In the mean time, a bland diet of plain boiled chicken and plain white rice may help to soothe minor digestive upset until you can get into the vet.

How to Identify Common Pet Problems ?

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Possible causes of bleeding from the anus can include polyps or tumors of the colon or anus, intestinal cancer, abscess or infection of the anal gland, severe constipation, blood clotting disorders, or even certain types of poisoning.
If you`ve noticed blood in your dog`s stool and your dog also vomiting, refusing to eat, and looking unwell, it`s time for an immediate trip to the vet. During normal business hours contact your regular vet and book an emergency appointment, after hours you should call your emergency vet.
There are many reasons your dog`s poo may have blood in it. These can range from worms to gastroenteritis and can also be caused by food allergies or eating something they shouldn`t have. But it`s important to note that, if your dog is well, this is usually nothing to worry about.
Bright Red Blood in Your Dog`s Stool

If you notice a single streak of red blood in your dog`s stool, and the rest of his poop is normal, it might be a fluke. But you should still call your veterinarian. Consistent bleeding or large amounts of blood, on the other hand, indicate a more serious problem.

Kitty-cats that carry fleas on their skin will also have small little particles of dried, undigested blood. This “flea dirt” represents minute pieces of undigested blood that these parasites leave behind (yes, fleas are messy little bugs).
Intestinal parasites are a common cause of blood in stool in cats and can be caused by a variety of parasites, including roundworms and giardia. These parasites can cause inflammation and bleeding in the intestines, which can lead to blood in the stool.
Home remedies and natural treatments can be helpful for some dogs under a vet`s guidance. Your vet may recommend temporarily feeding a bland diet of plain boiled chicken and rice. There are also cases where it`s appropriate to give dogs canned pumpkin, vitamins, supplements, or electrolyte drinks like Pedialyte.
When signs of parvo start showing, the stool gets more watery, becoming brownish to black diarrhea with traces of blood. After signs of parvo start to show and diarrhea gets bloody and smelly, it`s a race against time because most dog fatalities happen within 2 to 3 days after the symptoms.
Causes of blood in cat poo include food allergies or eating something unsuitable, infection, parasites, reaction to some medications, anal gland issues and colitis (inflammation of the large intestine). Even stress can cause blood in your cat`s poo, for instance if you`ve recently moved house or it`s fireworks season.
Stress can also trigger inflammation and changes in how your intestines work, aggravating underlying gastrointestinal conditions and resulting in bloody stool. While stress can be a contributing factor in some cases of bloody stool, it`s not necessarily the main cause.
When a dog is stressed, it can lead to a condition called stress colitis. Stress colitis is a condition that causes inflammation in the colon. This can lead to bloody diarrhea in dogs. Other symptoms of stress colitis include vomiting, weight loss, and abdominal pain.
A dog with hookworms may have a loose, dark, or bloody stool and suffer from weight loss and dehydration. At those signs, your vet will need to check your dog`s stool. If hookworms are found, you can treat your pet with Drontal , Panacur C for dogs, or another deworming medication.
Other Signs of Illness

If upon examining your cat`s coat, you notice dryness, flaky skin or excess dander, greasiness, bald or thinning patches, or lumps under the skin, see your veterinarian. Be prepared to talk about any deviations from normal behavior (activity, appetite, mood, etc.) that your cat displays.

Thomas: Tiny blood spots in wet places are a key indicator of the presence of fleas. These nasty little parasites feed off your cat`s blood, and when they poop, they poop out that dried blood. Dahlia: Flea dirt looks like little black specks when it`s dry, but when it`s wet it turns a rusty-red or blood color.
Feline hemotropic mycoplasmosis (FHM) is the name of a relatively uncommon infection of cats. In the past, this disease was called feline infectious anemia or hemobartonellosis. With this disease, the cat`s red blood cells are infected by a microscopic bacterial parasite.
Cats can get worms after coming in contact with infected feces or parasite eggs. Symptoms of worms in cats include vomiting, diarrhea, weight loss, lethargy, swollen belly, and a dull coat.
Parvo smell has a unique very bad-smelling poop that is not easy to forget. The smell has been described as metallic, with hints of blood stench since the virus affects the intestinal walls, and a seemingly sweet scent.
Canine parvovirus (CPV) is a highly contagious viral disease of dogs that commonly causes acute gastrointestinal illness in puppies. The disease most often strikes in pups between six and 20 weeks old, but older animals are sometimes also affected.
pale colored, very foul-smelling, floating stool.
A bland diet for a day or two may help to resolve your dog`s issue. Plain-cooked white rice with a little chicken and some canned plain pumpkin (not pie filling) may help to make your dog`s tummy feel better. Once your dog feels better gradually reintroduce their regular food.
Dehydration is very serious; dogs with canine parvovirus refuse water and quickly dehydrate due to their constant vomiting and diarrhea symptoms.
Several days after the appearance of early symptoms, a distinctive bright red rash may appear on your child`s face — usually on both cheeks. Eventually it may spread to the arms, trunk, thighs and buttocks, where the rash has a pink, lacy, slightly raised appearance.
Constipation – Hard stools can scrape against and damage blood vessels, resulting in bleeding. Intestinal Parasites – Some types of intestinal parasites, like hookworms, Giardia, and coccidia, can lead to bleeding in the digestive tract. Organ Dysfunction – Cats with organ dysfunction commonly develop diarrhea.
Constipated cats will strain in an attempt to defecate, resulting in abdominal pain. Some constipated cats may pass small amounts of liquid feces or blood because of excessive straining.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. Has not eaten in 2 days. Noticed a little blood on the fur on her butt. What can I do?
ANSWER : A. Blood near the rear can be caused by a number of things. Bright red blood in the stool or around the anus can indicate a problem with the colon or anal region such as constipation, tears, illness or problems with the anal glands.

Blood that is dark or black in the stool can indicate a problem with the upper intestines such as the stomach or small intestine. This is usually considered more serious than bright red stool, however any blood seen is cause for concern. If the blood is seen more than once or twice, making a vet appointment is a must.

If your dog is not eating and is having blood in either her stool or vomit, making an appointment with your local vet is best. Illness, digestive upset or problems with internal organs can all cause these symptoms. In the mean time, a bland diet of plain boiled chicken and plain white rice may help to soothe minor digestive upset until you can get into the vet.

Q. My 3 month puppy eats his own poop and is also biting what can I do to prevent this
ANSWER : A. When it comes to poop eating, you want to consider a few things. First off, what is his diet like? Maybe something is lacking in his diet that is causing him to want to eat his own poop. This is the most common reason why dogs eat THEIR OWN poop. Try a higher quality kibble like Taste of the Wild, Ziwipeak, Orijen.. and try feeding three meals per day, instead of the more common two meals per day. Remember to gradually switch his kibble. Add a little bit of the new kibble and reduce the old kibble very slowly.. little by little every couple of days until the bowl is mostly new kibble! You should also be cleaning up his poops IMMEDIATELY after he does them.. I mean like, you have a bag in your hand, and you are low enough to scoop it up RIGHT when he finished so he doesn’t have a chance to eat his poop.

When it comes to nipping there are a few things you can do. First, you should yelp as soon as the teeth touch your skin, stand up, cross your arms, and ignore the puppy until he is ignoring you. Once he is off doing his own thing, swoop down and calmly reward him by playing with him WITH A TOY so he doesn’t nip your hands. Whenever you pet him, or interact with him, you should always have a toy on-hand so you can give it to him. This toy should be a soft braided rope toy that YOU own. This means, your puppy is never allowed to have this toy on the floor, and your pup can never “win” tug games with this toy. This is YOUR toy that disappears when you’re finished playing, and reappears when you want to play. If you keep this up, in a weeks time, your puppy will be so excited to see that toy, that as soon as you bring it out, he stops nipping you because he wants to play with the toy. Another thing you can do is have two bags of toys. Bag#1 is full of chew toys/soft toys/squeaky toys/etc. After one week, Bag#1 disappears and out comes Bag#2. Bag#2 has the same types of toys as Bag#1, and it only stays out for one week. This keeps the toys feeling like new to your pup!

Q. My dog licks her butt excessively sometimes and I notice some blood on sheet we put on bed and today I noticed some blood coming out of her butt.
ANSWER : A. What you noticed could be related to anal glands disease, such as inflammation or infection. The blood could originate from her genital tract as well or her anus. I would strongly recommend to take her to your veterinarian for a check up as she may need pain relief and antibiotic treatment ( in case of anal gland infection).

Please engage in a consultation to discuss the problem any further.

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. Cat is over 13 years old, blood test show anemia, weight loss, increase appetite, thick nails, very vocal, blood test did not show thyroid disease,tre
ANSWER : A. It is possible another metabolic issue could be causing the anemia and weight loss, or a more in-depth thyroid test is needed beyond the basic panel. Anemia can be caused by a number of things including blood loss from internal or external bleeding, failure to produce enough blood cells, or destruction of the blood cells by the immune system. Looking for causes of anemia may help you to find the underlying cause causing your cat’s symptoms. Additional tests such as ultrasound, further blood work and more may be beneficial.

Q. My dog has had dark red blood in stools for 2 days now . She found & ate a baby bird back in August , could that cause a problem now after so long
ANSWER : A. It seems pretty unlikely to me that the bird ingestion could have anything to do with the blood in the stool you’re seeing now. Depending on exactly how it looks, it could be a number of things. If the stool is normal and has blood on it, it could be an anal gland problem (infection, tumor) or a problem inside the rectum, like a mass. If she’s got diarrhea along with blood, she could have a bacterial or parasitic infection in her intestines, or she could have inflammatory bowel disease. I’d get this checked out as soon as possible.

Read Full Q/A … : Causes of Blood in Dog Stool

Q. I have 3 shihtzus 2 have diarrhea seem fine otherwise I did change there diets in the last 3 days for all. They eat imams canned food twice daily now
ANSWER : A. Some dogs have more sensitive stomachs than others so a change in diet may have been enough to cause it. Did you introduce the new food gradually? We normally recommend doing it over 7-10 days (a quarter of new food with 3quarters of the old food for a few days, then half and half for a few days etc). Was there a reason for changing their diet? If they were fine on the original food then stick to that. If the diarrhea doesn’t clear up in a few days then get some pro biotic paste from your vet.

Read Full Q/A … : Kibbles 'n Bits Dog Food

Q. 13 yo Dalmatian, suffers from colitis and arthritis. Vet recommended Chappie, and gave her all her life. Should we change it considering her problems?
ANSWER : A. Chappie was the original name of the product that is now known as Pedigree. Pedigree is considered a “grocery” style food, meaning it may not be as high quality or include higher quality ingredients as other products. However, the Pedigree line has expanded quite a bit in recent years and now offers many products tailored to dogs of all ages, sizes and breeds.

If your dog has done well on the product, you may be able to just switch over to a variety that is geared more to your dog’s needs such as a large breed senior formulation. Senior formulations often have added supplements to help with joint pain and arthritis later in life. However, if your dog has been experiencing problems with the food product, switching to a higher quality food such as one without grains may help. Higher quality foods will often have alternate grain sources to prevent digestive upset as well as higher quality meat cuts listed on the top of the ingredient list.

if you do decide to switch foods, the process should be done gradually over 7-9 days. For the first 2-3 days 25% new/ 75% old should be given, then 3 days of 50/50, and 2-3 days of 75% new / 25% old before finally switching over. This will help minimize any stomach upset from changing to a different food too quickly and allow the intestinal bacteria to adjust.

Read Full Q/A … : Best Low Fat Dog Foods