However, several factors can influence when a Shar-Pei enters heat for the first time, including:
* Breed: Some breeds are known to mature earlier or later than others.
* Genetics: Individual dogs can inherit different traits from their parents, including the age at which they reach sexual maturity.
* Environmental factors: Diet, nutrition, and overall health can also affect a dog's sexual development.
It is crucial to understand that each dog is an individual, and their heat cycles can vary. While the range of 6-18 months is a general guideline, it is best to consult with your veterinarian for specific information about your Shar-Pei's heat cycle.