Hard lumps on the back of the neck in the cervical spine may be caused by localized lymph node enlargement, sebaceous cysts, and osteophytes, which can be treated with physical therapy, medication, and surgery. 1. Enlarged local lymph nodes: hard lumps at the cervical vertebrae at the back of the neck can be caused by enlarged local lymph nodes, which are hard and heavy to the touch, and may be accompanied by pressure pain and redness and swelling. Lymph node enlargement usually requires lymph node biopsy or surgical removal of the mass to clarify the nature of the lymph node for subsequent diagnosis and treatment. 2. Sebaceous cysts: the back of the neck local repeated friction, long-term sweating can lead to local follicular obstruction, the formation of sebaceous cysts, the back of the neck at the cervical vertebrae with a hard lump of the manifestations of the application of metronidazole, amoxicillin, ceftazidime and other medications as prescribed by the doctor, the acute inflammation is controlled by the feasibility of surgical excision treatment. 3. Osteomalacia: cervical vertebrae osteophytes, the enlargement of the bone can be localized in the manifestation of hard lumps. The pain can be treated with anti-inflammatory and analgesic drugs such as celecoxib orally under the guidance of a doctor, and localized physical therapy such as acupuncture, tuina, pulse, etc. Surgery can be performed to remove the bone spurs if the condition is serious. When there is a hard lump in the cervical vertebrae at the back of the neck, you should consult a doctor in time, and under the guidance of a specialized doctor, you can actively carry out appropriate treatment, which will help you recover from the disease early.