After minimally invasive breast nodule surgery, menstruation may be related to endocrine disorders and normal menstruation, generally pay attention to timely replacement of sanitary napkins and keep the pubic area clean and hygienic. 1. Endocrine disorders: After breast nodule surgery, endocrine disorders may be caused by surgical stimulation and patients’ excessive nervousness, which may lead to early menstruation. There is no need to worry too much about this situation, usually after a month or two, the endocrine regulation of the body, menstruation will return to normal. 2. Normal menstruation: It may be the normal menstruation in the menstrual cycle, at this time, pay attention to do a good job to keep warm, avoid the abdomen cold, pay attention to maintain pubic hygiene can be. It is recommended that patients follow the doctor’s instructions to regulate the treatment, if there are abnormalities during menstruation, you can inform the doctor in time.