The clinical manifestations of lymphoma are diverse and can occur in any part of the body, from top to bottom and inside to outside. There may be only 3 parts that do not grow lymphoma, hair, cornea and nails. The clinical manifestations are as follows: 1) enlarged lymph nodes: for example, swollen lymph nodes in the neck and swollen lymph nodes in the armpit, usually without pressure pain, or slight pressure pain if it grows rapidly; 2) lymphoma grows in extra-nodal organs, i.e., organs other than lymph nodes, and symptoms may appear in the corresponding parts. For example, if it grows in the brain, the patient may have headache, nausea, vomiting, and in severe cases, coma. If the lymphoma is located in the gastrointestinal tract, nausea, vomiting, or even gastrointestinal bleeding or intestinal obstruction may occur; 3. Compression symptoms may appear in the corresponding parts: for example, if the lymphoma is located in the paravertebral area, the spinal cord may be compressed and paraplegia may occur; if the lymphoma is located in the intestinal tract, intestinal obstruction may occur; 4.