The causes of small bumps inside the neck include subcutaneous neck swelling, thyroid disease, lymph node enlargement, etc., as follows: First, subcutaneous neck swelling: such as lipoma, fibroid, sebaceous cyst, etc., need to go to the hospital to check ultrasound or CT for clarification, some patients need to perform surgery to remove; Second, thyroid disease: such as nodular goiter, hyperthyroidism, thyroid tumor, and even Some patients need to be treated with oral medication, while others need surgery, especially for malignant tumors; thirdly, swollen lymph nodes: there are many causes, such as bacterial infections, viral infections, tuberculosis infections, autoimmune system diseases, blood disorders. Third, lymph node enlargement: there are many causes, such as bacterial infection, viral infection, tuberculosis infection, autoimmune system disease, blood disorders, and other tests, including lymph node biopsy, are needed to clarify.