Some physiological spider nevi can go away on their own, while those caused by liver diseases need to be treated in time to promote the disappearance of spider nevi. The main cause of spider nevi is the increase of estrogen level in the body. For adolescent girls, pregnant women, and those who have recently taken estrogen-containing drugs such as birth control pills, the estrogen level in the body will increase, thus causing spider nevi to appear. For this group of people, two months after giving birth, after stopping the use of contraceptive pills, usually the spider nevus can subside on its own. Some liver diseases such as chronic hepatitis and cirrhosis can lead to insufficient inactivation of estrogen in the body, resulting in spider nevi. For this group of people, we need to find out the cause of the disease and then actively carry out the corresponding treatment to restore the function of the liver to help the spider nevus subside. Under the guidance of the doctor, you can choose appropriate drugs, such as entecapone, methyltestosterone and other drugs, and if you have any discomfort during the use of drugs, you need to consult the doctor in time. For some spider nevi that cause special discomfort, affect aesthetics and are difficult to eliminate, they can be removed directly through surgical treatment; or carbon dioxide laser treatment can be used to eliminate the lesions. It is recommended that the corresponding groups of people should consult the doctor in time to clarify the causes of spider nevi and then carry out the corresponding treatment.