How often do dogs come in heat?

About the Heat Cycle. The onset of heat cycles usually begins when most bitches reach the age of six months, although larger breed dogs may not have that first cycle until closer to a year old. read more

Your dog has come into heat. It is most common for the dam to come into heat at six months of age and then every six months thereafter. Some dams come in at four months and some at twelve months for their first heat, while some are every six months and some every five to 11 months. read more

Generally dogs will come into heat twice a year (approximately every 6 months). There are, however some that come in once a year, and some three times. We will also commonly see that the first heat is an incomplete one and the dog returns to a full heat about 1 month later. read more