In general, taking progesterone to regulate the lining will not increase menstrual flow, but due to different personal constitution, the specific situation varies from person to person. Progesterone belongs to the progesterone class of drugs, mainly applicable to the treatment of preeclampsia, habitual abortion, premenstrual tension syndrome, anovulatory amenorrhea and other conditions. Generally speaking, the amount of menstrual flow will not increase when taking progesterone to regulate the lining, but it can not be ruled out that there will be a very few exceptions. Patients with increased menstrual flow may be caused by endometrial abnormal hyperplasia, gynecological endocrine disorders, endometrial polyps, submucosal fibroids and other diseases. It is recommended that the patient should consult a doctor in time for examination to clarify the cause of the disease and then carry out targeted treatment, pay attention to rest in life, avoid over-exertion, and pay attention to monitoring the condition and regular review.