The main reasons for delayed menstruation with breast swelling and pain may include physiological phenomenon, premenstrual syndrome, and breast diseases.
1. Physiological phenomenon: Before the onset of menstruation, estrogen in the body is at a high level, and the delay of menstruation makes the estrogen level in the body continue to rise, and the rising estrogen stimulates the breast lobular hyperplasia, which can cause breast swelling and pain, and with the onset of menstruation, the estrogen level suddenly drops, and the breast swelling and pain can also disappear.
2. Premenstrual syndrome: It is a series of syndromes characterized by mental and physical discomforts, mainly manifested by mood swings, constipation, breast distension, abdominal pain and other symptoms occurring 1-2 weeks before menstruation, which can be gradually relieved with the onset of menstruation.
3. Breast diseases: breast lobular hyperplasia, mastitis, breast fibroadenoma, breast cancer and other diseases will be manifested as breast swelling and pain, lumps, nipple discharge and other symptoms, the symptoms can appear before menstruation and will not be relieved with the end of menstruation.
Delayed menstruation accompanied by breast swelling and pain, it is recommended to go to a regular hospital for a comprehensive examination to exclude lesions, so as not to miss the condition, resulting in adverse consequences.