The recommended duration of the month after an induced abortion is about 2~4 weeks, depending on the recovery of the woman’s body after the abortion. Retained abortion refers to the situation where the fetus stops developing in the uterus and dies in the uterus before the 28th week of pregnancy due to various reasons, but the fetus stays in the uterine cavity for several days or weeks after its death and fails to be discharged naturally. After an induced abortion, women should pay attention to rest, strengthen nutrition, and allow the damaged uterine lining to return to normal. It is usually recommended to rest for about 2~4 weeks. During the period of menstruation, women should pay attention to maintaining regularity of life, ensuring good and sufficient sleep, strengthening nutrition, paying attention to keeping warm, observing vaginal bleeding, and going to the hospital in time if the amount of vaginal bleeding is heavy or prolonged. And keep the pubic area clean and dry, do not sit in the bath and coitus, in order to prevent infection. If there is fever, abdominal pain, or persistent vaginal bleeding during the menstrual period after an induced abortion, women should consult a doctor in time.