Clinical common V-shaped birthmark, mostly refers to infants and young children forehead V-shaped red birthmark, mostly related to the birth canal extrusion and other physiological factors, but may also be related to bright red nevus, strawberry capillary hemangioma and other pathologic factors, should be for the different conditions of the corresponding treatment, and its treatment methods include general treatment, physical therapy and so on. 1. Physiological factors: If the V-shaped birthmark is caused by physiological factors such as extrusion in the birth canal, usually there is no need to worry about it, and its symptoms will subside with age. 2. Nevus erythematosus: Nevus erythematosus may cause localized V-shaped birthmarks, which is usually treated by physical therapy, and it is recommended to adopt photodynamic therapy, dye laser, intense pulsed light, etc. Through the laser generated by photothermal effect, it helps to destroy the affected tissues and repair the skin lesions. 3. Strawberry capillary hemangioma: V-shaped birthmark on the skin may also be caused by strawberry capillary hemangioma, usually through electrocautery, CO2 laser or ultrasound micro-mediated methods of treatment, which can help improve the disease. The causes of V-shaped birthmarks are not the same, it is recommended that patients go to the regular hospital in time, improve the examination and diagnosis, under the guidance of specialists for standardized treatment.