A foreign body in the neck that can be moved may be a nodule or related to enlarged lymph nodes, or it may be due to other reasons such as an enlarged thyroid gland. 1. Enlarged lymph nodes: Infection, tumor metastasis, etc., leading to inflammatory reaction in the body, causing reactive enlargement of lymph nodes, which can be moved by touch, and can also be accompanied by pain, swelling and fever. 2. Enlarged thyroid gland: there are many reasons for enlarged thyroid gland, such as hyperthyroidism, inflammation, etc. The thyroid gland is close to the throat, so it will feel sliding up and down when swallowing, and it will feel sliding when touching with hands, which will result in the movement of a foreign body in the neck. 3. Others: If lipoma and sebaceous cyst appear in the neck, it will also be accompanied by foreign body sensation and activity, and usually there is no special symptom, but if the lesion appears, it may compress blood vessels and nerves, causing pain. If there is a lesion, it may compress blood vessels, nerves and so on, causing pain. If there is a foreign body in the neck that can be moved, it is recommended to consult a doctor in time for diagnosis, clarification of the cause of the disease, and timely treatment, so as to avoid delaying the treatment, which will affect your health.