As with many other types of cancer, the signs and symptoms of oral cancer vary from person to person. Some of the most common signs include mouth sores or pain that doesn’t go away. Oral cancer may also appear as white or red patches on the gums, tonsils, or the lining of the mouth. Other symptoms include swelling in your neck, a lump in your cheek, difficulty swallowing or chewing, feeling like something is caught in your throat, trouble moving your jaw or tongue, weight loss, constant bad breath also is considered. Early signs of oral cancer may be mistaken for other problems, such as a toothache or cold. If symptoms persist for several weeks or months, it is important to see your doctor.