Bumps on the neck may be related to skin diseases, enlarged lymph nodes, thyroid disorders and other causes. 1. Skin diseases: If sebaceous cysts, lipomas and other lesions appear in the neck, they may be manifested as cysts or lipomas protruding from the body surface. 2. Enlarged lymph nodes: such as lymphadenitis, lymphoma and other diseases can cause enlarged lymph nodes, which can be manifested as round bumps in the neck. 3. Thyroid diseases: such as thyroid nodules, thyroid tumors and other reasons, if the nodules or tumors are large and protruding from the body surface, it can be manifested as bumps on the neck. There are many other reasons for the bumps on the neck, it is recommended to go to the hospital in time to clarify the cause of the disease and standardize the treatment under the guidance of the doctor, so as not to delay the condition.