When Do Dogs Have Their First Heat

Ideally your dog should be spayed before she enters her first heat cycle.

When do dogs have their first heat. Here are some of the signs you may notice during this stage of your dog s heat cycle. Some dogs can go into heat as young as four months while larger breeds may be as old as two years before their first heat. When do bitches first come into season. Personality changes may cause your.

The first week of heat. This period lasts from seven to ten days with most dogs experiencing this stage of the heat cycle for about nine days. Estrus or heat is the stage in a female dog s reproductive cycle during which she becomes receptive to mating with males. Your female dog might urinate more often.

Most female dogs will have have their first periods irregularly but the cycle tends to normalize in the first two years. It is strongly advised not to breed young female dogs during their first and second cycle. Juvenile female dogs usually undergo their first heat cycle from the age of around six months old although for some dogs they may make it to upwards of one year old before they will first come into season. Spaying dogs before their first heat cycle greatly reduces their chance of getting mammary cancer.

Know the following signs and symptoms of a dog in heat. Owners of large breed dogs tend to be the ones that have heat cycle scares. How to recognize if your dog is in heat. Their eggs are not.

That s because large breed dogs may not have their first heat until two years of age. Medium sized dogs like labrador retrievers generally go into heat in that 6 month range however it can be up to a year before they have their first heat. At this time estrogen levels first increase and then sharply decrease and mature eggs are released from the ovaries. The first week of your female dog s heat cycle is known as proestrus.

Some giant breeds may not go into their first heat until they re 18 24 months old. When does a dog experience her first estrus. On average most dogs will have their first heat cycle between six and 15 months of age. Toy breeds can come into heat for the first time as young as four months while large and giant breeds may be as old as two years before experiencing a first heat cycle.