Bleeding on implantation is not the same as menstrual bleeding, and the main difference is manifested in symptoms, laboratory results and time. 1. Symptoms: Usually, patients with implantation bleeding are asymptomatic, bleed less and last for a shorter period of time, usually 1~2 days, while menstrual bleeding bleeds more and lasts for 5~7 days. 2. Laboratory results: the level of human chorionic gonadotropin in the patient’s body increases during the implantation of the fertilized egg, while the level of human chorionic gonadotropin in the blood is normal during menstruation. 3. Time: Bleeding from implantation usually occurs about one week after intercourse, and then the woman will show the symptoms of menopause, and the time of menstruation has nothing to do with intercourse, and she will have menstruation according to the usual menstrual cycle. If the above symptoms occur, it is recommended that patients determine what causes the bleeding, if there are uncomfortable symptoms promptly go to the hospital, early formal treatment.