If a woman has breast tenderness there is a possibility of pregnancy, not all breast tenderness means necessarily pregnant. There are several possibilities for breast swelling and pain: 1, pregnancy, after pregnancy by the influence of hormone levels, pregnant women’s breasts will significantly increase, especially the glandular ducts of the mammary glands will develop rapidly, which will lead to breast swelling and pain, accompanied by the enlargement of the breast. This will occur throughout pregnancy and does not require special treatment. 2, before menstruation, a small number of women will also experience breast pain, and breast enlargement, hormonal changes, most of which are also recommended for regular follow-up. 3, if the breast pain is not regular and painful in general, other diseases of the breast should be ruled out, such as fibroids of the breast, malignant lesions, etc. need further examination. The following is a list of some of these diseases