The phenomenon of hard black pimples on the neck may be due to folliculitis, common warts, fibroma and other factors, which can be relieved by anti-infective drugs, physical therapy, surgical treatment and other ways. 1. folliculitis: in the case of not paying attention to hygiene and low immunity, it is easy to cause the hair follicle area by staphylococcus aureus infection, so the phenomenon of folliculitis, inflammation can be left behind pigmentation and hard knots, after diagnosis, you can cooperate with the doctor to choose the fusidic acid, mupirocin ointment treatment, and surgical excision if necessary. 2. Common warts: related to human papilloma virus infection, can cooperate with the doctor to choose cryotherapy, laser treatment and other physical therapy to relieve. 3. Fibroma: a benign tumor disease of the skin, which occurs in the neck and armpits, so the hard black pimples on the neck may be related to the factors of the skin flab, and after the diagnosis, you can cooperate with the doctor to choose the surgical excision of the way to alleviate the problem. After the symptoms of black hard pimples on the neck, it is recommended to go to the hospital in time, to clarify the cause of the disease, and follow the doctor’s instructions to standardize the treatment.