The presence of a lump between the chin and neck often indicates a local reaction of lymph node hyperplasia. First of all, you need to go to the hospital for ultrasound examination, which can basically give a definitive diagnosis for the local condition. In case of lymph node enlargement, ultrasound can basically determine the nature of the lymph node enlargement. Most inflammatory lymph node enlargement is caused by a local inflammatory reaction, so the patient should undergo anti-infection treatment for the primary lesion. If the patient has a cold or tonsillitis, it may cause this condition. In addition to this there may be localized occupancies, which are mainly benign lesions such as sebaceous cysts and lipomas, which can also be determined by ultrasonography, and whether further surgical treatment is needed.