When do poochon poodles start menstruation?

Answer 1

Many of the small dogs come in heat around 6-9 months of age. Many mature quicker than others, but they should start their first heat within the first year of their life.

Answer 2

Domestic dogs do not menstruate, they are oestral mammals not menstrual ones. A dog first starts to ovulate at around six months old, but smaller breeds can do it as early as four months.