Black spots at the root of pubic hairs may be related to pubic lice, but the conclusion should be made only after specific examination. 1. If there are black spots at the root of pubic hairs and the skin near them is itchy, rashes or greenish-gray spots, it should be considered to be related to pubic lice, and then the pubic area should be actively cleaned up and timely medical treatment should be sought. 2. If there are black spots at the root of pubic hair and you can feel the bumps on the surface, you should consider that the black bumps are formed by the secretion blockage at the root of the hair follicle for a long time, and you need to wash and clean it frequently. 3. When there are black spots at the root of pubic hair and no bumps on the surface, and the body is not in any discomfort, it can be considered as normal melanin precipitation, and regular observation can be done. The black spots on the roots of pubic hairs are not completely sure that it is pubic lice, so you need to go to the hospital for an examination to clarify the cause of the disease and get a professional diagnosis from the doctor.