Hemangioma is a benign tumor, all without any symptoms. The root cause is vascular malformation due to abnormal development of blood vessels in embryonic development, excessive development or abnormal proliferation of blood vessels, which usually has no obvious symptoms and does not pose much danger and does not require special treatment, only to avoid rubbing and bleeding of surface hemangioma. If the hemangioma is larger and affects the function, such as repeated bleeding or seriously affects the aesthetics, it can be treated surgically, and the surgical methods include hemangioma excision, laser treatment, and cryotherapy. The specific lesion also depends on the location and size of the tumor to decide what kind of treatment method to take. Most hemangiomas do not need special treatment and only need to be observed.