Secondary milk is a phenomenon in the process of human evolution. At the earliest time of human evolution, the auxiliary breasts will gradually shrink, leaving only one breast on each side. Some women will produce a breast-like tissue next to the normal breast, which is generally called accessory breast. Many people have auxiliary breasts, some people don't feel them, and some people feel bad or uncomfortable. Generally speaking, the most common accessory breasts grow in bilateral armpits, and in rare cases they grow in groin.

? The generation of accessory milk can be due to congenital ectopic breast tissue or false accessory milk caused by improper dressing. Some women will have a pair of breasts after giving birth because of the changes of hormones in their bodies. Most of the auxiliary breasts are located under the armpit, showing a spherical soft tissue, which is the extra two pieces of meat under the armpit when many girls wear suspenders in summer. Some accessory mammary glands are affected by hormones like normal mammary glands, showing the same swelling and pain as menstrual cycle, and even hyperplasia of accessory mammary glands may occur.

It is precisely because the accessory breast has breast tissue that the breast tissue may become cancerous, leading to cancer. However, the probability of accessory breast cancer is very low. So if you have a lump under your arm, you must be careful. It may be breast cancer. You need to go to the hospital for examination and treatment as soon as possible. If the appearance is affected, or discomfort such as pain and swelling occurs, it is recommended to remove the accessory breast, and minimally invasive surgery can be chosen, with small scars and quick healing.

Because accessory mammary gland is congenital, it can't be eliminated by exercise, massage and other means, and it can only play a role in relieving. Generally speaking, auxiliary milk has no effect on human health. Therefore, there is no discomfort, and the small auxiliary milk cannot be treated. In view of the prominent accessory breast, which affects the appearance, or is accompanied by pain and hyperplasia, surgical resection can be chosen. The operation can be performed under local anesthesia, and the incision is about 2-3 cm. Complete excision of local subcutaneous glands of accessory breast, and then cosmetic suture. The postoperative scar is located in the armpit, which does not affect the appearance, and will not recur after the gland removal in the accessory breast.