The role of body pubic hair includes protective function, keep warm, keep the pubic area dry and clean, beautiful and so on. 1. Protective function: pubic hair can cover the pubic area, play a good buffer after the pubic area suffers damage, but also can play a role in protecting privacy. 2. Warmth: pubic hair can reduce the evaporation of heat after covering the pubic area, thus playing the role of warmth. 3. Keeping the pubic area dry and clean: pubic hair can absorb sweat or secretions from the pubic area, thus keeping the pubic area dry and ventilated, and playing a clean role. 4. Aesthetics: pubic hair can cover the pubic area, thus playing the role of aesthetics. Finally, the body of the pubic hair has a lot of roles, after the occurrence of pubic hair loss or abnormal growth, please consult a doctor in a timely manner.