Soreness or tenderness of the breasts, often with a feeling of fullness. Breast tenderness is an extremely common problem. In most women it is cyclical, varying in severity in response to the hormonal changes of the menstrual cycle. It is usually most severe before a period (see premenstrual syndrome). It tends to affect both breasts and may be aggravated by stress or caffeine in drinks. Breast tenderness can also be noncyclical and may be caused by muscle strain or mastitis. During lactation, it may be due to engorgement with milk. Rarely, tenderness may be due to a breast cyst or breast cancer. However, examination by a doctor will exclude any underlying problems. Women with large breasts are more likely to suffer from both cyclical and noncyclical breast tenderness.
Cyclical tenderness may be relieved by reduced caffeine intake, relaxation
exercises for stress, a well-fitting bra, or weight loss to reduce breast size.
If these measures do not work, hormonal treatment may be recommended.... breast tenderness