The bitch comes back to her aunt. The first time a bitch comes to her aunt is when she is about 8 months old. A normal adult dog will come to her aunt twice a year, in spring and autumn, each time lasting half a month. About a month. When a dog comes to its aunt, it is in estrus. There will be bleeding from the vagina and frequent licking of the private parts. Pay attention to the hygiene of the dog. It is best to wear menstrual pants for the dog. Moreover, the body resistance of the dog at this time is relatively weak, so be careful. Keep warm.