Breast swelling and delayed menstruation is common in endocrine disorders, pregnancy, breast hyperplasia and other conditions, need to be combined with the patient’s own medical history and relevant test results to take targeted treatment. 1, endocrine disorders: menstruation is regulated by the female endocrine, endocrine dysfunction when the endocrine function will cause breast swelling and pain, delayed menstruation, accompanied by skin roughness, emotional irritability, etc., it is recommended that the hormone six examination to help diagnosis, and then according to specific It is recommended to take a hormone six test to help diagnose and then take targeted treatment according to the specific cause of the disease. If the delayed menstruation in reproductive age, a considerable part of patients with polycystic ovary syndrome, can take compound short-acting contraceptive pill cycle treatment, if there is insulin resistance, can be considered at the same time to give metformin to improve the insulin resistance; 2, pregnancy: previous menstruation regular and sexually active women, the delayed menstruation and mild breast swelling may be pregnancy, feasible blood HCG and ultrasound to confirm the diagnosis. If you have a childbearing plan, you should pay attention to birth control and take regular pregnancy checkups. 3. Breast hyperplasia: there may be cyclic pain associated with menstruation such as breast pain, accompanied by irregular menstruation, nipple overflow and other symptoms, and it is feasible to confirm the diagnosis with breast ultrasound and MRI. If there is persistent breast pain, you can be given medications such as triamcinolone acetonide according to the doctor’s instructions, and if there are cysts, it is feasible to treat them with fine-needle aspiration. Daily consumption of fresh fruits, vegetables, meat, egg and dairy products, soybean and nut foods, etc. should be repeated every 3-6 months.