The symptoms of breast swelling and pain can occur in the first ten days of menstruation, mainly due to the following reasons: 1. Some women are depressed, anxious, insomniac, or tired and nervous, due to their recent life or work, resulting in endocrine disorders. In the ovulation period, due to the increase in the secretion of sex hormones, poor blood circulation in the breasts may also easily cause symptoms such as breast swelling and pain. 2, some women, due to their own lobular hyperplasia disease, after ovulation in the middle of the menstrual period, due to the increase in the secretion of estrogen such as hormones in the body, also easily cause symptoms such as breast swelling and pain, need to take drugs such as masturbation elimination under the guidance of a doctor, symptomatic treatment to relieve symptoms. 3, some women in the It is recommended to keep your mood relaxed and adopt a healthy lifestyle to reduce the symptoms of breast pain.