Spider angiomas grow on the face, neck, upper chest, shoulders, and upper limbs.

Spider angiomas are vascular nevi formed by the dilation of terminal branches of small arteries in the skin. The causes are related to increased estrogen levels and decreased androgen production in the body. It may also be caused by physiological and pathological factors. When women enter puberty, there is a relatively large amount of estrogen secretion in the body, which may lead to the appearance of spider angiomas. As age increases, the amount of estrogen secretion gradually decreases, and the symptoms will gradually disappear. Spider angiomas may also appear after pregnancy, which is due to excessive estrogen production during pregnancy. The symptoms will gradually disappear after delivery and do not require treatment.

If the number of spider angiomas is relatively large and there are more obvious physical symptoms, it is necessary to consider pathological causes, which are closely related to liver function damage, such as liver cirrhosis, viral hepatitis, etc. If the liver is severely damaged, it will lead to a decrease in metabolic capacity. After estrogen enters the blood circulation, it will cause the terminal branches of small arteries to become dilated and expanded, thereby producing spider angiomas.

Spider angiomas often grow on the face, neck, upper chest, shoulders, and upper limbs, etc. If the number is relatively large, it is recommended to go to the hospital for a comprehensive physical examination to identify the cause and then treat the symptoms accordingly, which can quickly improve the condition.