Puberty breast pain: generally occurs at 9 ~ 13 years old. After menarche, the pain will disappear by itself. It's related to hormone levels.

Premenstrual breast pain: Premenstrual breast pain is an important early signal of gynecological diseases. Strictly speaking, women's breasts are part of the reproductive system and are greatly influenced by estrogen and progesterone. If the endocrine system or ovarian function of the body is disordered at a certain stage, it will have an impact on the menstrual cycle and breast tissue, resulting in a series of lesions, of which the most common and lightest symptom is breast fullness before menstruation. If necessary conditioning or treatment is not given, there will be more discomfort, such as premenstrual headache, irritability, insomnia, even premenstrual pain and mild edema. These symptoms gradually disappear after menstruation, once a month, and appear repeatedly, which is called premenstrual tension syndrome in medicine. In this way, mastopathy will be formed, the most common is mammary gland hyperplasia, and menstruation may also be unbalanced, leading to menstrual disorder or amenorrhea, breast pain and infertility.

Breast pain after sexual life: this is related to breast physiological changes during sexual life. People with indifferent sexual desire or disharmony in sexual life will not easily or completely eliminate breast congestion and swelling, and persistent congestion will cause breast pain.

Breast pain during pregnancy: when some women are pregnant for about 40 days, the placenta and villi secrete a lot of estrogen, progesterone and prolactin, which leads to breast enlargement and breast pain, which can last for the whole pregnancy. No treatment is needed.

Postpartum breast pain: 3 ~ 7 days after delivery, breast pain and induration often occur. This is mainly due to lymphatic retention, venous filling, interstitial edema and poor mammary duct.

Breast pain after induced abortion: when pregnancy is suddenly interrupted, the hormone level in the body suddenly drops, which makes the newly developed breast suddenly stop growing, causing breast lumps and breast pain.