Clinical manifestations of malignant melanoma metastasized to lymph nodes include mainly enlarged lymph nodes, systemic symptoms such as generalized fever and weakness of limbs, respiratory symptoms such as cough and sputum, etc., but the details vary from person to person. 1. Enlargement of lymph nodes: when malignant melanoma metastasizes to lymph nodes, it will cause different degrees of enlargement of lymph nodes in the nearby areas, and the superficial enlarged lymph nodes can be touched. 2. Other systemic symptoms: some patients may have generalized fever, weakness of limbs and so on, as the lymph node metastasis is accompanied by infection. 3. Respiratory symptoms: if the metastatic lymph nodes compress or invade the mediastinum or lungs, it may lead to symptoms such as coughing and sputum. Symptoms after the appearance of lymph node metastasis vary from person to person, and it is recommended to go to regular hospitals for comprehensive examination and treatment.