At What Age Does a Boxer Enter Heat?
Some owners may be surprised to know that a female Boxer can enter heat relatively early. Boxer dogs typically enter the first heat between the ages of 6 months old and 1 year old. However, some may have it as early as 4 months or as late as 15 months old. If your un-spayed female does not have her first heat by the age of 2 years old, you'll want to alert the veterinarian.
Since the heat cycle will occur when a Boxer is still a puppy, this means that he is able to become pregnant
at that young age. This is just another reason to consider having her fixed.
How Long Does Heat Last For?
The cycle itself will last anywhere from 5 days to 3 weeks. This will happen about 2 times a year. Each dog is different. However, each dog's body generally will follow a pattern.
Once your dog has gone through 3 cycles, you should be able to predict how long it lasts for her and how often. Dogs can enter heat for their entire lives; unlike humans it does not always stop as they grow older.
Allowing a senior dog to go through the physical stress of heat is neglectful. A female Boxer should be spayed as soon as possible. The majority of veterinarians recommend this even before the first cycle comes. This will keep your Boxer healthy and increase her life span
Can a Boxer Become Pregnant When She is Not in Heat?
The answer is no, but beware. An owner may think that their dog's heat cycle is over, when in fact it is not! If male dogs are taking great notice of her and/or she is overly attentive to males, she most likely is still in her cycle.