What is the cause of a hard bump on the neck

Neck nodules include the following possibilities: i. Lymph nodes, most lymph nodes are caused by inflammation and usually patients do not need special treatment. Second, sebaceous cysts, sebaceous cysts if treated consider surgical removal. Thyroid nodules, thyroid nodules need to be further examined by ultrasound, most of them are benign nodules, if they are malignant patients will need surgical treatment. The lipoma is benign and can be surgically removed if it affects life. It is recommended that ultrasound be used to make a clear diagnosis.