Squamous cell carcinoma is the most common type of tongue cancer. It usually appears as a pinkish-gray or red bump or sore on the side of the tongue. Symptoms include changes in the tongue's appearance, pain, and problems tasting or speaking. Squamous cell carcinoma generally affects older adults and is more common in men, as smoking and drinking alcohol increase risk. Treatment options depend on the size and extent of cancer but may include surgery, laser therapy, radiation, or chemotherapy. Regular dental exams and avoiding tobacco, excessive alcohol, and sun exposure can help prevent squamous cell carcinoma.