The site of spider nevus

summary

My roommate had several red spots on his face and neck. He said it was spider nevus. He was weak, tired and had a bad appetite. He checked his liver function, blood routine and kidney function. I learned some knowledge about spider nevus from the doctor. Today, I'd like to learn about the common parts of spider nevus.

The site of spider nevus

First, it mostly appears in the face, neck and chest, and other parts. The appearance of small round hemangioma with a diameter of less than 2mm in the center stretches out many capillaries and has branches. It looks like a red spider lying on the skin. If you press the pencil point on the center, the spider nevus will disappear, because the blood flow direction of spider nevus is from the center to the surrounding capillary branches If the central part is compressed, the blood flow is blocked and the spider nevus disappears due to ischemia.

Second: spider nevus, also known as arterial spider nevus, is similar to spider in shape, with radial arrangement of capillary dilation beside the nevus body. The occurrence of this disease may be related to the increase of estrogen level. Most of them are located above the trunk, especially in the face, neck and hands. Physical therapy can use high-frequency electrocautery, diathermy or carbon dioxide laser, YAG laser or microwave therapeutic apparatus to destroy the central blood vessels, and then it can be cured.

Third: spider nevus is a special telangiectasia. Common in acute, chronic hepatitis or cirrhosis. Also seen in pregnant women and healthy people. The appearance of spider nevus is often parallel to the state of liver function. When liver function deteriorates. The number of spider nevus can increase rapidly. The nevus may change from bright red to brownish black. And then disappear.

matters needing attention

Another point is: Patients with nevus of Ota should pay attention to keep the treatment site clean to avoid infection and friction. If there is skin on the treatment site, it needs to fall off by itself. Do not remove it by hand. Otherwise, the pigmentation is serious and the scar is easy to be left. It is recommended to go to a regular 3A hospital for treatment.