Hard lumps, i.e., hard nodules, grow at the private hair follicles, which may be caused by folliculitis, vestibular cysts and scarring, among other causes. 1. Pubic folliculitis: the patient’s pubic hair follicles are locally infected with Staphylococcus aureus, leading to the formation of hard nodules, the pubic skin may appear small pustules, or even inflammatory hard nodules. Patients may have clinical symptoms such as skin redness, swelling, burning, pressure pain and itching. 2. Vestibular cysts: Vestibular cysts are characterized by a reddish mass next to the vaginal opening, which is hard and painful to touch. The patient may also have a sensation of swelling in the vulva. 3. Scarring: often associated with the patient’s personal constitution, keloid patients due to localized folliculitis attacks, excessive scratching after the formation of scarring, shaped like a hard knot. Private follicles at the long hard bumps may also be due to other reasons, if the situation is serious, we recommend that you go to a professional hospital, clear cause of the disease in the doctor’s guidance under the standardized treatment.