Two flaps of the little toe cap may be caused by physiological reasons such as heredity, or pathological reasons such as nail root or nail bed injury. 1. Physiological causes: In medicine, it is called flap nail or little toe complex, which means that the little toe nail is divided into flaps instead of a complete piece. In fact, flap nail is an autosomal dominant trait, which generally does not need special treatment. 2. Pathological reasons: If people wear shoes, shoes are not suitable or women often wear high heels, etc., small toes and shoes for a long time extrusion may lead to nail root or nail bed damage, may appear small toes cover two flaps of the phenomenon. It is recommended that people who have two flaps on their little toes, if they are worried about pathological causes, go to regular hospitals in time to clarify the causes and standardize the treatment under the guidance of the doctor.