The causes of breast sweating are: 1. It is normal for the parts of the breasts to sweat a lot in the summer to be moist. Its due to the hot weather and high temperature, the body’s temperature regulation center in order to keep the body temperature in the normal range, through a large number of sweating methods to dissipate heat. The breasts also wear more underwear than other parts, so the amount of sweating is relatively high. The reason for this is that menopausal women sweat a lot in the breast area all year round due to a decrease in hormone levels and low blood calcium levels, coupled with sagging breasts and inappropriate undergarments that cover the sweat glands and make it difficult for heat to escape, resulting in a lot of sweating under the breasts. The sweating can be reduced or disappeared by choosing the right underwear and taking oral treatment such as Kuan Nian An tablets and Kun Tai capsules.