Sex

The usual age for a dog to enter heat is approximately six months, however it may begin as early as four months in toy and toy-sized breeds. On the other hand, bigger or gigantic breeds may not go into heat for the first time until they are 18–24 months old. It is highly advised that young female canines not be bred during their first two heat cycles. They haven't achieved full maturity yet, and neither have their eggs or their dogs. When your dog is of breeding age, your vet may advise you on when to start the breeding process.

The average length of a heat cycle is two to four weeks. Some female dogs may be infertile at the beginning of their cycles, while others may stay fertile throughout. The length of a person's cycle might be different from their neighbor's. When your dog's vulva shrinks back to its usual size and there is no longer any bleeding or discharge, the cycle has ended.

The fertile period of the heat cycle is brief, lasting just around five days on average (starting nine to 10 days into the cycle). A female dog, however, may get pregnant up until her cycle is complete. The whole heat cycle lasts between five and six months and consists of four distinct stages, each with its own set of symptoms and patterns of behavior.

Two of these stages include some kind of blood loss or discharge. While female dogs naturally regulate their activity throughout the heat cycle of their mate, humans may need to take extra precautions to prevent discharge from staining furniture or treat health problems like infections. To keep your dog healthy and prevent any problems, it's important to understand their heat cycle and give them special attention during this time.