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When do girl dogs start their period?

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This period of estrus is also called «being in heat» or «in season.» On average, most dogs reach this stage at about six months of age, but this can vary according to the breed. Smaller dogs tend to have their first cycles at an earlier age. read more

The female dog menstruation period usually starts when she is 5 to 10 months old; however, in some small breeds, it may start at six months. The female dog menstrual cycle lasts for 21 days or three weeks on an average, but it may vary from 8 to 30 days. read more

Hi Petelee - Dogs don't have periods; the have heat cycles. These generally start around 6 months old, but some dogs wno't get one until 1-2 years old. It's best to have your dog fixed by 6 months old to prevent pregnancy and lower the risk of tumors and various cancers. Unless your dog is a show dog or competitive dog, she should really be fixed. read more

Female dogs do not menstruate in the way that women do. Instead, dogs have an estrous cycle, more commonly called a heat cycle. Sexually mature female dogs go through heat twice, or less commonly once, every year. This usually starts between 9 and 12 months of age, although this varies. Females have heat cycles throughout their lives because, unlike primates, dogs don’t go into menopause as they age. read more

I dont know if diff breeds start at diff times but im just tryna figure out how old my dog is. Shes half pitt bull and half dalmation and she started her first period a month after we found her. read more

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Best Answer: They don't have periods - they have heat cycles. And it depends - small - medium sized dogs have their first heat around 6 months, while many large and giant breeds don't have their first until 9 months to 1 year. read more

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