How often do dogs have periods?

” is that bloody vaginal discharge is present in both the menstrual cycle and the estrous cycle. read more

Male and female dogs of all species develop reproductive capabilities during puberty. Depending on the breed of dog, the length of puberty varies, and commences at different ages. The estrus, or menstrual, cycle of most female canines begins when dogs reach the age of 6 months. read more

Female dogs do not have periods per se, but they do go through a regular heat cycle if they have not been spayed, or desexed. The average heat cycle for a dog is anywhere from 1 week to 4 weeks in length. The time between heat periods is usually around seven months but can vary from every 4 months to once a year. read more