Patients with bumps under the left cheek are commonly caused by enlarged lymph nodes, abnormal accumulation of tissues and tumor metastasis, roughly as follows: 1. Enlarged lymph nodes: superficial lymph tissue hyperplasia causes enlarged lymph nodes, and for patients with mumps or purulent inflammation of the tonsils or oral ulcers, these conditions can cause superficial soft tissue lymph node hyperplasia and form local bumps, which can be treated by active anti-infection and control of the primary disease, Control the primary disease, the lymphatic tissue will gradually improve after the primary infection is controlled, thus improving the symptoms of local bumps; 2, abnormal accumulation of tissue: If the patient is accompanied by abnormal accumulation of local fibrous or adipose tissue, lipoma or fibroma can be formed, which will also manifest as local bumps, and if necessary, the local bumps can be surgically removed to achieve a complete cure; 3, tumor metastasis 3: Some patients with tumor metastasis and hyperplasia will also show localized subparotid bumps, because the prognosis of patients with tumor lesions is poor, even with surgery or chemotherapy, the prognosis of patients is often poor and cannot achieve a better treatment effect.