Blockage of lymph nodes in the neck occurs mostly due to laryngitis, rhinitis, colds, etc., as well as hair dyeing and scalp scratching, which may cause lymphatic blockage in the neck. When the lymph is blocked, it will affect the body’s circulation, lead to swelling, and there may be infections, and in serious cases, death. Therefore, do not take the symptoms of lymphatic blockage lightly, but go to the hospital promptly: first, edema. After blockage of the lymph nodes in the neck occurs, serious edema will appear. The severity of edema is mainly related to the symptoms of the primary disease. Second, swelling. It causes obstruction of the return flow of lymphatic fluid, causing swelling of the extremities, mainly in the lower extremities, commonly known as rubber legs. Third, infection. Blockage of lymph nodes in the neck can often lead to the presence of local foci of infection, which can make the diseased organs and tumors get incorrect examination, and the lesions can easily metastasize to distant places and spread to other organs, causing serious consequences. Fourth, death. Long-term blockage of lymph nodes in the neck is easy to form complex leaky channels, and once the leaky channels are formed, it is difficult to be cured. Poor treatment by medication causes a series of side effects, which may lead to death.