Early symptoms of axillary lymphoma usually only show hardened and enlarged lymph nodes. Due to abundant lymphatic tissues in axilla, besides primary tumor, axillary lymphoma also exists in more cases such as metastatic cancer from lung cancer and metastatic cancer from breast cancer. In the early stage of axillary lymphoma, isolated lymph nodes usually become hard and enlarged, with poor mobility, and not accompanied by fever, pain and other uncomfortable symptoms. With the development of the disease, the lymph nodes gradually increase in size and may merge into a mass, and at the same time, combined with pain, redness, swelling and other uncomfortable symptoms, and may even be infected with ulceration, fatigue, and weight loss. Therefore, when the axillary lymph nodes become hard and enlarged, you should consult a doctor in time to make a clear diagnosis, and carry out targeted treatment under the guidance of the doctor.