Dysphagia and odynophagia
Larger tumors can cause problem with the opening and closing of the mouth. They usually cause pain upon swallowing (odynophagia) or difficulty in swallowing (dysphagia). Ulcerative changes in the carcinoma of the oral cavity can also lead to dysphagia and odynophagia. Carcinoma of the tongue can cause pain while chewing and swallowing.