The master said: A woman came for a consultation, saying her menstrual flow was less than before. Why is that? The master said: If she has had diarrhea, or if she sweats and urinates freely, it is acceptable. Why is that? The master said: Because she has lost body fluids, which causes the menstrual flow to decrease. If the menstrual flow is actually more than before, it should cause distress, and one should say that she may have difficulty with bowel movements and no longer sweats.