HomeDog HealthWhy is My Dog Bleeding from its Vagina?

Why is My Dog Bleeding from its Vagina?


If your dog bleeding from its vagina, it could raise some concerns as a pet owner, but it’s a normal part of a female canine’s heat cycle.

If it’s not the time for your dog to go into heat, you might need to worry a little. Bleeding off-season could potentially be a sign of a serious health condition.

dog bleeding

Estrus Cycles

Dogs get their first heat at the onset of puberty and each estrus cycle consists of numerous stages. The stage termed “estrus” is when your dog can become pregnant. That’s when your dog is likely to either be in heat or season. 

The next question that you might have is when do dogs reach puberty? 

They do so when they’re about six months old, but this can depend on the breed as well. Most dogs come in a season twice a year or once every six months, however, it varies from breed to breed.

Smaller breeds might get into heat thrice a year, while bigger and larger breeds can get in heat as little as once a year. 

You don’t need to worry if your female dog’s vaginal bleeding is irregular because it can take up to 2 years for the cycles to get in sync and become regular. 

Also Read: Internal Bleeding in Dogs: Symptoms, Causes & Recovery

dog in pain

How Do We Notice Estrus? 

The swelling of the vulva is one of the initial signs of this stage. However, sometimes this swelling may be unnoticeable, making a bloody vaginal discharge the first time owners notice it.

A dog’s vaginal bleeding can change as time passes. The discharge might be very bloody and watery in the initial stages, and pinkish-red in later stages. 

How do other dogs know that a dog is bleeding from their vag and if they’re in season? 

Well, every female dog’s urine contains pheromones and hormones which alert other dogs about their reproductive state. Female dogs gain a lot of attention from males during this period. 

Estrus can last for 1-2 weeks, but it differs from one dog to the other and the period can vary. 



If your dog bleeds off-season, it could mean that it has pyometra. Pyometra is a very serious infection that is contracted when a dog’s womb gets filled with pus.

If it isn’t treated on time, it might even lead to fatal conditions such as kidney failure, toxemia, dehydration, and death in certain cases. 

Old dogs bleeding from their vulva are at a greater risk of suffering from this condition as it affects older bitches who are yet to be neutered. 

If you’re wondering why dogs contract pyometra, it is often caused by bacterial infections. Generally, it occurs a few weeks after a female dog has completed her season.

While in season, female dogs go through many hormonal changes making them vulnerable and at a greater risk of infection.   

dog bleeding

How Do You Detect Pyometra?

Well, some symptoms of this disease include your dog losing its appetite, feeling lethargic, or very thirsty. Sometimes, your pet might also have a discharge from its vagina. However, this isn’t always the case. 

What should you do if your dog has Pyometra? The only solution to this disease is to amputate your dog’s womb. This can be done by any veterinarian after proper diagnosis. 

dog in pain

As a responsible pet owner, you must take care of your dog and be aware of the different types of bleeding.

When they’re bleeding during their season, try to treat them with plenty of love and care, feed them their favorite food, spend time playing with them, and engage in other such activities.

If they’re bleeding off-season, contact the vet as soon as possible. 

Paul Andrewshttps://www.linkedin.com/in/paul-andrews-172490189/
A digital marketing expert by profession, Andrews is a gifted writer and animal lover at heart. A self-confessed "pawrent", Andrews is well-versed in all things dogs. He uses his years of experience of raising puppies into show quality dogs to help guide first time pet parents. He believes in spreading the joy that comes with being a dog dad and advocates more families to adopt pets.


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