After an abortion, menstruation usually occurs about 1 month after the procedure. If you do not have a period after the operation, you need to consider the following situations: First, you need to consider the irregularity of menstruation after abortion. In a few patients, the function of the ovaries does not recover so quickly after abortion, which may lead to a delay in menstruation. Secondly, we should consider whether there is cervical adhesion or cervical adhesion, which is a common complication after miscarriage and may affect menstruation and future fertility. Thirdly, we need to see if we are pregnant again. Some women resume sexual life after miscarriage, but do not have a good contraceptive measures, it will easily lead to another pregnancy after miscarriage.