Chinese herbal medicine is relatively slow to regulate menstruation, and there are individual differences and drug sensitivities, so the time taken to regulate can be long or short. There are many reasons for abnormal menstruation, so there is usually no exact value for the time it takes to regulate menstruation to a normal state by taking herbal medicine. Irregular work and rest, stressful thoughts, gynecological diseases, pelvic inflammatory disease, endometritis, endocrine hormone disorders, etc. can cause abnormal menstruation, and relevant tests are needed first to clarify the diagnosis. If the menstrual disorder is caused by Qi deficiency, it can be restored to normal in about 2 weeks by taking Chinese herbal medicine. If the abnormal menstruation is caused by factors such as decreased ovarian function, the treatment course is relatively long. If the symptoms are mild, the Chinese herbal medicine can gradually recover in 1-2 months, but it may take 2-6 months or even 1 year to reach a completely normal state. However, if the symptoms are severe, it is usually difficult to return to normal physiological state, and you need to go to a hospital gynecology department for symptomatic treatment in time. In addition, during the process of taking Chinese medicine to regulate menstruation, you should abstain from eating cold, greasy and stimulating foods, avoid staying up late and anxiety, maintain a good state of mind and ensure regular work and rest.