Excess mucus production is not a common symptom of throat cancer, according to the American Cancer Society. The most common symptom of throat cancer is a sore in the mouth that does not heal. Pain in the mouth that does not go away is also very common. Additional symptoms of throat cancer include thickening or a lump in the cheek or white or red patches on the gums, lining of the mouth, tonsil or tongue.
Trouble moving the jaw or tongue or difficulty swallowing or chewing are other signs of throat cancer, notes the American Cancer Society. A sore throat, a feeling that something is stuck in the throat, numbness of the tongue or other areas of the mouth, and swelling of the jaw that affects the fit of dentures are additional symptoms. Pain in the jaw or around the teeth, changes in the voice, weight loss, constant bad breath, and a mass or lump in the neck are also hallmarks of throat cancer.
Many of the symptoms associated with throat cancer mimic those of other conditions or cancers, reports the American Cancer Society. Any symptom that persists for two weeks or longer requires evaluation by a medical professional to rule out or confirm the presence of cancer.