Stretching the neck does not usually cause lymphatic swelling in the neck. Stretching the neck may cause injury to the neck muscles and soft tissues, resulting in pain, limited movement, and if the injury is severe, swelling, bruising, and hard lumps may occur at the site of the injury. However, it does not usually cause swelling of the lymph in the neck. Cervical lymphatic tissue is responsible for collecting lymphatic return from the nose, sinuses, throat, mouth and face. When inflammation occurs in these areas, it will invade and transfer to the cervical lymph nodes, resulting in cervical lymphatic enlargement. Therefore, cervical lymph enlargement should be alert to the presence of other causes, such as tonsillitis, gingivitis, otitis media and other acute infectious diseases, cervical lymph node tuberculosis, as well as malignant diseases such as malignant lymphoma and nasopharyngeal carcinoma. It is recommended to consult a doctor in time if there is swelling of lymph in the neck, complete the relevant examination, and let the specialist judge the specific cause.