What causes pain from armpit to side of breast?

The main function of breasts is breastfeeding. Of course, breasts can also greatly enhance a woman's appearance, because women with plump breasts will be the focus wherever they go, especially young women, who basically don't have to worry about finding boyfriends. Although women’s breasts are very beautiful, beauty also comes at a price. Most women will feel pain on the side of their breasts. So, what is the cause of pain from the armpit to the side of the breast?

There are several reasons why women may experience pain on the outside of their breasts:

1. The initial symptoms of mastitis are pain on the outside of the breast, which may be accompanied by redness, swelling, heat and pain, and some patients may also have fever.

2. Breast pain during adolescence. Little girls will have a slight pain in their breasts after they begin to develop. Usually, this pain will disappear automatically after menstruation comes.

3. Premenstrual pain. About one-third of women will experience breast pain and discomfort before their period, and some even have granular nodules. In fact, this is caused by increased estrogen levels in the body.

4. Mastodynia. The pathogenesis of mastodynia is the same as that of primary dysmenorrhea. Its main feature is that the pain in the two breasts is different, and it may even radiate to other parts around the breasts. Mastodynia is closely related to abnormal secretion of sex hormones and autonomic nervous system.

5. Breast cancer. Breast pain is one of the most important manifestations of breast cancer. Clinically, it is believed that if the breast pain is unbearable, it is usually a sign of advanced breast cancer. Only 6% of breast cancer patients experience breast pain in the early stages of the disease. Breast cancer is a disease that is highly prevalent among women aged 20 to 40, so it must be given sufficient attention.