If a woman’s menstrual flow has been smooth in the past, but her menstrual blood does not come out this time, the following methods can be used: 1) Apply heat to the lower abdomen or move around properly to improve blood circulation so that the menstrual blood will flow smoothly. 2) Take motherwort pellets orally to promote uterine contraction so that the menstrual blood will flow smoothly. 3) If a woman has cervical canal adhesions after abortion, or if the uterus tilts forward or backward excessively, the cervical canal adhesions can be loosened and the uterus can be reset to reduce the amount of menstrual blood. If the menstrual blood does not flow out due to excessive forward or backward tilting of the uterus, the cervical canal adhesions can be loosened with a probe if necessary to reset the uterus and reduce the angle between the uterine body and the cervix, which will also facilitate the smooth discharge of menstrual blood. In addition, women should pay attention to keep warm during menstruation to avoid getting cold, which is also beneficial to the smooth discharge of menstrual blood.