Two balls sliding on both sides of the jaw may be the case of enlarged submandibular lymph nodes, benign tumors, submandibular lymph node metastasis of malignant lesions. 1. Enlarged submandibular lymph nodes: Inflammatory diseases such as upper respiratory tract infection, gingivitis, tonsillitis and other inflammatory diseases lead to inflammation of mucous membranes, which may cause enlarged submandibular lymph nodes, and two balls sliding on both sides of the jaw. 2. Benign tumors: lipoma, fibroma, sebaceous cysts and other benign tumors lead to the appearance of two balls sliding on both sides of the jaw, usually without pressure and pain. 3. Submaxillary lymph node metastasis of malignant lesions: patients with oral cancer, tongue cancer and other tumors have submaxillary lymph node metastasis of malignant lesions, which will also cause two balls sliding on both sides of the jaw. It is suggested that patients should consult the doctor in time, improve the examination under the doctor’s guidance to make a clear diagnosis and carry out targeted treatment.