There are several reasons for the growth of small bumps on top of the neck: first, there may be benign swellings on the epidermis or under the skin, such as skin warts, lipomas, fibroids or sebaceous adenomas, etc. These are benign swellings and generally do not produce malignant changes. If it is a sebaceous adenoma, eating irritating food that is easily inflammable may lead to infection; secondly, the lymph nodes above the neck, if a person is thin, it is normal to touch the lymph nodes, if there is an upper respiratory tract infection such as throat or trachea, the local lymph nodes may also become enlarged, thus there are bumps felt above the neck; thirdly, it may be a swelling of the thyroid gland, such as thyroid Third, there may be a swelling of the thyroid gland, such as a thyroid nodule, thyroid adenoma, etc. These swellings move with swallowing. No matter which of these swellings is mentioned above, the diagnosis can be confirmed by local ultrasound.