What is spider mole?

Spider nevus is an idiopathic telangiectasia, formed by dilation of the terminal branches of small arteries in the skin. Spider nevus are mainly related to elevated estrogen levels in the body. Under normal circumstances, the liver can inactivate estrogen and maintain hormone balance in the body. However, when liver diseases occur, such as liver cirrhosis, etc., leading to liver function decline, the ability to inactivate estrogen decreases, so that estrogen accumulates in the body, causing arterioles to dilate and form spider nevi. In addition, adolescent girls and pregnant women may also appear spider nevi due to physiological increase in estrogen levels in the body. Spider moles are typically characterized by a small red dot in the center surrounded by small radial blood vessel branches, similar to spiders. Pressure on the center can cause the entire vascular mole to fade and return to its original state after removal of pressure. Spider moles usually occur on the face, neck, upper chest, shoulders and upper limbs. Spider nevus is not a serious disease in itself, but it may be an important sign of some diseases. In addition to the liver diseases mentioned above, it may also be related to other endocrine diseases, rheumatic immune diseases, etc. Therefore, when spider nevus is found, especially accompanied by other symptoms such as jaundice, abdominal distension, fatigue, etc., medical treatment should be sought in time, comprehensive examination should be carried out, such as liver function test, abdominal ultrasound, etc., to clarify the cause and take corresponding treatment measures.