How does neck lymph node swollen return a responsibility not painful itch

The patient has neck lymph node enlargement, if there is obvious pain, it is considered to be caused by lymphadenitis. Painless lymph node enlargement needs to be considered to be caused by goiter or lymphoma. Many factors can lead to goiter, such as iodine deficiency, genetics, thyroid disease, etc., which needs to be diagnosed after definite examination.