The small amount of menstrual period in the second month of hysteroscopic surgery may be related to the endometrial lining is too thin, the basal layer of the uterus is damaged and other reasons, should pay attention to it. 1. Thin endometrium: When women undergo hysteroscopic surgery, due to a series of operations, there may be localized damage to the endometrium, and when the endometrium is too thin and has not yet recovered from the operation, the amount of menstruation may be reduced. 2. Damage to the basal layer of the uterus: If hysteroscopic surgery stimulates the body to a relatively large extent, it may cause damage to the basal layer of the uterus, and in serious cases, it may cause adhesions in the uterine cavity, which will also have an impact on menstrual flow, resulting in a decrease in the amount of menstruation or even amenorrhea. There may be other reasons for the small amount of menstruation in the second month after hysteroscopic surgery, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then follow the doctor’s instructions to give targeted treatment or therapy.