What are spider nevus? How to treat it? There are always some moles on everyone’s body, more or less in number, big or small in shape, dark or light in color. Generally, people think that moles are I don’t even care if melanin is deposited. But there is a kind of mole that looks like a spider, called a "spider nevus." Its shape and size are different from ordinary moles. If you don’t know this kind of spider nevus, let’s learn about spider nevus with us now! What is spider nevus? Spider nevus mostly appears on the face, neck and chest. But some people also develop spider veins on other parts of their body. Spider nevus appears as a small round hemangioma with a diameter of less than 2 mm in the center, with many capillaries extending out to the surroundings and branches. It looks like a red spider lying on the skin. If the central part is pressed with the tip of a pencil, the spider nevus will disappear, because the blood flow direction of the spider nevus is from the center point to the surrounding capillary branches. If the central part is compressed, the blood flow will be blocked, and the spider nevus will disappear due to ischemia. Spider nevi are a sign of disease. Spider nevi are common in acute and chronic hepatitis or cirrhosis. When liver function deteriorates, the disease increases; after liver function improves, the disease changes from bright red to dark red, and then disappears. However, it should be pointed out that spider nevus does not necessarily mean cirrhosis of the liver. Spider nevus is also a normal physiological phenomenon. Women in adolescence are at the peak stage of growth and development. There is a large amount of estrogen in the body, and some spider nevus may appear. This is a normal physiological phenomenon. As we age, estrogen secretion gradually decreases, and these spider nevi will gradually disappear. This disease can also occur in pregnant women, usually appearing within the 2nd to 5th month of pregnancy and disappearing after delivery. Treatment of spider nevi Treatment of vascular skin diseases such as spider nevi include laser, freezing and microwave. With the development of science and technology, cosmetic methods are more suitable for the treatment of angiomatous skin diseases, such as selective laser (such as VP532nm) and intense pulsed light. Doctors’ warm reminder: Spider nevus itself is not harmful to the human body. However, if you find a spider nevus, you should go to the hospital immediately to check liver function and liver B-ultrasound to rule out malignant tumors and various diseases that cause liver failure. What if you are concerned about spider nevus? How to treat it?