There are many reasons for spider moles on the chest, mainly related to estrogen metabolism, female puberty, pregnancy and severe liver disease are easy to cause spider moles on the chest.
1. During puberty, women are in the most rapid growth and development period, and the level of estrogen in some of them is much higher than that of androgen. Under the influence of estrogen, the capillaries proliferate abnormally, so spider nevus will be produced, this condition usually does not need treatment, and it can be recovered on its own after the end of puberty.
2. During pregnancy, the level of estrogen and progesterone rises sharply, and the proportion of androgen is very small, so spider nevus is also prone to appear, and this kind of spider nevus usually subsides by itself after the end of breastfeeding period.
3. Liver cancer, liver cirrhosis or severe hepatitis and other serious liver diseases will lead to a decrease in the liver’s ability to inactivate estrogen and high estrogen levels in the body. Spider nevus is also easy to appear. Actively treating liver disease, spider nevus can also subside on its own after the liver function level returns to normal.