The benefits of shaving pubic hair for pubic lice disease mainly include removing the environment in which pubic lice reside, and helping to better apply medicines externally. 1. Remove the host environment of pubic lice: pubic lice bugs generally reside in the hairy parts of the human body, commonly found in the pubic area, but also found in the hair, beard and other parts of the body. Pubic lice bugs usually do not leave the hair, so patients can remove the host environment of pubic lice after shaving the pubic hair. It is worth noting that patients should burn the pubic hair after shaving, so as to avoid the spread of pubic lice bugs. 2. Better use of drugs: after shaving the pubic hair, patients should also use some drugs such as lindane lotion, malathion lotion, benzoate emulsion etc. to eliminate adult lice and eggs, removing the pubic hair is conducive to a better external application of these drugs on the pubic area. For patients diagnosed with pubic lice disease, they should go to the relevant departments of regular hospitals as soon as possible and be treated under the guidance of professional physicians, so as to avoid delays in the condition that may lead to adverse consequences. The above drugs should be used under the guidance of a doctor.