Breast pain can be caused by menopause and menstrual cycles, explains Mayo Clinic. Trauma to the breasts, an imbalance of fatty acids within the cells of the breasts and cysts on the breasts also cause breast pain. It can also be caused by hormones; this is known as cyclic breast pain and is often associated with pregnancy, states WebMD.
Women with large breasts often experience pain related to the size and weight of the breasts, according to Mayo Clinic. Women with large breasts may also experience back, shoulder and neck pain. Certain medications can increase the likeliness of breast pain, such as oral birth control pills and infertility treatments. Estrogen pills and antidepressant medications may increase sensitivity within the breasts.
Women who have undergone breast surgery often experience sensitivity and pain within the breasts until the incisions heal, notes Mayo Clinic. Breast pain is not typically an indication of breast cancer, but women who have large cancerous lumps may experience some pain. Women with lumps in the breasts should consult with a medical professional for further testing. Breast pain not associated with an illness or disease is treated with nonsteroidal anti-inflammatory drugs such as ibuprofen or naproxen. Breast pain that lasts longer than three weeks should be reported to a medical professional to determine the underlying cause.