Experienced and professional animal trainer provide their insights in answering this question :
A. Recheck with your veterinarian. It may be a local infection, UTI or irritation from excessive licking. Place an e-collar if she is licking. Monitor for frequent urination or straining to urinate as well as lethargy or loss of appetite.

How to Identify Common Pet Problems ?

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Vaginitis is the medical term referring to inflammation of the vagina or vestibule. It can appear in any female, spayed or intact, and at any age. Even dogs under a year of age can be affected for unknown reasons and it often resolves after their first heat cycle.
Vaginitis is inflammation of the vagina that may cause redness, swelling, and discharge. In puppies, it is usually a harmless condition that resolves on its own after its estrus (heat cycle), but older dogs usually need treatment.
Symptoms of vaginal hyperplasia

The most common sign is the protrusion of pink, inflamed tissue from the vulva of the affected dog. The inflammation may result in pain and subsequent excessive licking of the area.

An infected spay incision will likely be quite red and swollen. You may also observe drainage from the area, including blood or purulent discharge. Sutures may be missing and you may even notice underlying tissue protruding from the wound.
A visit to the veterinarian is the best idea as they will know which treatment protocol is suited to your pet`s needs. Inflammation of the vagina in dogs is also defined as vaginitis.
You might develop a grayish-white, foul-smelling discharge. The odor, often described as a fishy odor, might be more obvious after sex. Yeast infection. The main symptom is itching, but you might have a thick white discharge that resembles cottage cheese.
Overview. Vulvar dermatitis happens when the vulva becomes red, painful, and itchy. Dermatitis can be caused by heat or wetness or can be a reaction to scented soaps, powders, creams, toilet paper, spermicides, or clothing. A skin condition, such as eczema, also can cause dermatitis.
Very rarely, a “spayed” dog can have a condition called “stump pyometra.” This usually occurs secondary to the presence of a small amount of ovarian tissue left behind during the original spay procedure.
You wrote that your dog was spayed about 10 days ago and is now spotting blood and wonder if she is okay. Some dogs can have a small amount of bleeding after they are spayed. It should be a very small amount and stop normally on the first 3 days after the procedure.
A recent spay incision should be a clean, straight wound and the edges should be sealed with glue, stitches or staples. The skin will be slightly swollen and a slight reddish-pink color around the edges.
Antibiotics may be necessary, but sometimes simple Epsom salt soaks (applying hot, wet compresses to the area) works just great for many. Ask your vet about this option if the infection is very superficial and mild.
When a dog is in heat (receptive to mating), her vulva becomes swollen, and a bloody discharge will be evident. This heat period usually lasts for a week or two but can vary widely between dogs. After being in heat, the bleeding should stop, and the vulva returns to its normal appearance.
Your vet might prescribe an oral anti-yeast medicine. However, topical treatments, such as prescription strength anti-yeast cream, lotion, shampoo and wipes, are also effective. If your dog has a yeast infection on their paws, medicated wipes or lotion can be effective.
There are many disorders of the skin in dogs that appear the same. This includes skin itchiness, redness, and odor. Thus, a confirmed diagnosis of yeast infection is needed before appropriate treatment. Please do not try to treat your dog at home without a proper diagnosis from your vet.
Treatment for Genital Rashes

Because genital rashes often cause itching, OTC creams such as hydrocortisone can be helpful.

The initial stage of pyometra usually comes with a slight vaginal discharge with no prominent symptoms. Pets diagnosed with pyometra later show visible signs. Dogs with pyometra also have an increased white blood cell count and globulins in the blood. Some dogs may also have painful, enlarged abdomen.
Pyometra most commonly occurs in females >6 years of age, however we have also seen the condition in younger dogs, and occasionally in very young female dogs. It is most commonly diagnosed 1-12 weeks following the dog being `on heat`. 1 in 4 undesexed female dogs will develop a pyometra during their lifespan.
Sometimes female dogs will continue to exhibit symptoms of being in heat after they have been spayed. This usually happens because part of the ovarian tissue was left behind during the operation. Veterinarians define this condition as ovarian remnant syndrome. Protect yourself and your pet.
Pyometra is caused by a bacterial infection, most commonly E. coli, and often occurs a few weeks after a female has finished a season. This is because being in season causes the animal`s body to go through hormonal changes which make the chance of infection much more likely.
She may cry or moan a little, and might just feel like sleeping. It`s important to let her rest, keeping her still will be essential for an uneventful recovery.
What should the incision look like? The incision should be clean and the edges should be touching each other. The skin should be a normal or slightly reddish-pink color. It is not unusual for the incision to be slightly redder during the first few days while healing begins.
A small amount of redness and swelling is normal. Any drainage or discharge or excessively large swelling is not normal and should be reported to the clinic. She may have a slight cough for a few days.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. 7 mo female lab fixed at 6 mo. Girl parts are red and swollen. What could this be.
ANSWER : A. Recheck with your veterinarian. It may be a local infection, UTI or irritation from excessive licking. Place an e-collar if she is licking. Monitor for frequent urination or straining to urinate as well as lethargy or loss of appetite.

Q. My Pug’s nose is red and he doesn’t have a yeast infection. He is taking medicine for that. It seems to get worse when he goes outside. Any ideas?
ANSWER : A. Redness or irritation can be caused by a number of things including yeast infections as you mentioned, but can also be caused by allergies to the environment, or even cold or hot weather. Dogs with short fur can often get sunburns on the skin, and the cold may also irritate or cause redness when outdoors. Allergies to pollens or other outdoor allergens may also cause redness on the body or nose. An allergy medication from your vet is usually all that is needed to clear this up.

If the redness is happening just when outside, it may also be that your dog is digging or nosing around in something that is irritating. It may be a good idea to watch your dog a few times while he is outside to see if there is anything he enjoys exploring. The redness could just be irritation from that.

However, if you are concerned about the redness, it is always a good idea to bring it up with your veterinarian to make sure there is not a more serious cause behind it.

Q. I have two 3 week old kittens that I am bottle feeding. The kittens both have diareaa and there buts are red. Is there anything I can do ?
ANSWER : A. Diarrhea in kittens can be caused by many things, including intestinal parasites (very common in kittens), wrong formula, recent changes in diet (from queen’s milk to formula or from one formula to another), and other gastrointestinal upsets. Their bottoms are likely red and irritated from the diarrhea soiling the fur and skin, trapping moisture against the skin and serving as a breeding ground for bacteria. First, stop feeding the formula. Second, collect a fecal sample to be analyzed by your veterinarian for intestinal parasites. Third, call your vet and make an appointment as soon as possible, ideally the same day. Diarrhea in kittens is serious business and can lead to death from dehydration and loss of nutrients. Finally, in place of formula give an electrolyte replacement solution (like Pedialyte for infants/children) – plain, no flavors, no colors – for at least the next 1-2 feedings. This is not the same as a sports drink. After the 1st or 2nd feeding of straight electrolyte replacement solution, start to add formula back into diet at 1/4 strength ( 1 part formula to 3 parts water), The following feeding mix 2 parts formula to 2 parts water. Then, 3 parts formula to 1 part water. Finally, offer full-strength formula. If the diarrhea continues or worsens with increasing amounts of formula, go back to just electrolyte solution and repeat the process.

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. My dog is bleeding out of rearend after
going to vet for a leg trouble the vet says
it is stres
ANSWER : A. It could be many things causing the problem. If it is an unneutered female it could be a season, if it is in the urine it could be a cystitis which could be set of by stress amongst other things. It could be from the anal glands or it could be from the lower intestinal tract. If it is the latter I would be careful what pain relief medication you are giving as some can cause bleeding in the GI tract such as meloxicam. I would recommend having a recheck with your vet to establish where the bleeding is coming from as some causes may require treatment or a change in current treatment.

Q. My 5 month old dog woke up today very lethargic and not very hungry. His feces smells very bad and it has an orange colored mucus in it. only 5 lbs
ANSWER : A. This could be many things, however first I’d ask you (if we could talk) if your puppy is vaccinated against parvo? That’s a serious viral disease that produces very bad-smelling bloody diarrhea. If he’s not vaccinated against parvo, please take him in to see a vet right away.

Otherwise, if he is vaccinated against parvo, he could have intestinal parasites, he could have eaten something that’s upset his GI tract, or he could have a bacterial infection, for starters. The orange color you mentioned has me especially concerned – I’m worried it could be blood. Regardless – he’s not eating, and he’s lethargic, so he likely feels pretty awful. I recommend you take him to see a vet right away who can figure out what’s going on and treat it appropriately.

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

Q. My dog ran away 3 days ago , he came back later and immediately threw up all his food. He hasn’t eaten and is still throwing up since then.
ANSWER : A. I’m really glad to hear your dog came back! If you dog is vomiting I would recommend having him examined by a veterinarian because his vomiting could be caused by a gastrointestinal disturbance. He could have eaten something that upset his stomach, including an intestinal parasite or he could have even consumed something toxic. It would helpful for a veterinarian to evaluate for any injuries he could have sustained while being out of the home and for any abnormalities that could be causing his sickness. Stress could also be playing a role in his stomach upset since he was out of the home for several days.

Q. My dog has red spots on his bottom what could it be ? I gave him foam fast relieve bottle .
ANSWER : A. Red spots on the body and rear may be cause by a number of things. Rashes can be caused by allergies, or even irritation if the redness is around the anus (such as with diarrhea or constipation). Rashes due to allergies may cause the area to be itchy or red and may be cause by environment or certain food ingredients. It is best NOT to give your pet any over the counter medications unless instructed by your vet as they may be the wrong treatment or even harmful if given to your dog. Stopping him from licking and chewing at the area with the use of an Elizabethan (cone) collar may help, and a trip to the vet is best if the redness continues for more than a day or worsens.