Lymph node tumor is not painful when pressed. Clinically, its manifestations are complicated and diverse, mostly manifested as superficial lymph nodes are enlarged, without pain, with smooth and movable surface, tough and full when touched, and relatively uniform. In the early stage, the lymph nodes are isolated or scattered in the neck, armpits, groin and other places; in the late stage, they can be fused with each other and adhered to the skin and surrounding tissues, and then they are inactive, or some of them form ulcers. Patients may also have systemic symptoms, such as fever, itching, night sweats, emaciation, etc. Some patients may even have anemia. In addition, a very small number of patients will also appear skin-specific changes, such as polymorphic erythema, blisters, vesicles. Due to the patient’s low immune function, the skin often breaks down and oozes after infection, which does not heal for a long time, forming scattered skin thickening and flaking all over the body.