Most of the vascular nevi are congenital and benign tumors, which will increase with the age of the patient. Vascular nevus on the face mainly affects aesthetics, and if it is not removed in time, the root of the nevus will gradually deepen with age, causing the face to be skewed to the side where the nevus grows. If a vascular nevus grows in the throat, once it grows, it will block the esophagus and respiratory tract, causing difficulty in breathing and swallowing. If the nevus grows on the limbs or other parts that are prone to friction, it will easily rupture and cause bleeding, ulcers, and infections, etc. Some nevi may become malignant and suddenly rupture, causing hemorrhage and life-threatening diseases. Therefore, once a vascular nevus is diagnosed, don’t take a chance, but find and treat it as early as possible to prevent unnecessary troubles in future life.