The cause of many red moles on the body may be cherry angioma, spider nevus and other diseases. 1. Cherry hemangioma: also known as senile hemangioma, it is a kind of benign hemangioma, which can begin to appear in early adulthood, caused by capillary proliferation and expansion, generally no treatment is needed. It is caused by the proliferation and expansion of capillaries and generally does not need treatment. If for aesthetic reasons, it can be removed by laser. 2. Spider nevus: it is a kind of idiopathic capillary dilatation, which is formed by the expansion of the end section of small arterial branches of the skin, and is seen in patients with liver disease such as cirrhosis and acute hepatitis, and also seen in healthy people. The occurrence of this disease may be related to the increased level of estrogen. It can be improved by actively treating the primary disease, and if necessary, it can be removed by laser treatment or other means. The appearance of many red moles on the body should promptly consult a doctor to clarify the cause of the disease, and choose the appropriate treatment under the guidance of the doctor.