Thickening of the neck may be a thyroid problem, and may be caused by physiological factors, lipoma, cervical lymph node swelling and other diseases. 1. Physiological factors: often eat high-fat food, lack of exercise will cause obesity, fat will lead to increased subcutaneous fat in the neck, causing neck thickening. 2. Thyroid disease: simple goiter, autoimmune thyroid inflammation and other conditions can cause goiter, resulting in neck thickening. 3. Lipoma: localized subcutaneous lipoma in the neck may also cause neck thickening. 4. Swollen lymph nodes in the neck: Infections can cause swollen lymph nodes in the neck, which can also cause neck thickening. It is recommended to go to the hospital for consultation when neck thickening occurs. After eliminating physiological factors, standardized treatment will be carried out in a targeted manner.