Lip and oral cavity cancer is a type of cancer that starts in the lips or lining of the mouth. It is the 15th most common cancer worldwide and the 8th most common cancer in men. The most common symptom of lip and oral cavity cancer is a lump or sore in the mouth that does not heal. Other symptoms may include pain, bleeding, numbness, and difficulty chewing or swallowing. The cause of lip and oral cavity cancer is not fully understood, but it is thought to be caused by a combination of factors, including smoking, tobacco use, alcohol use, and exposure to ultraviolet radiation. The risk of developing lip and oral cavity cancer increases with age, and it is more common in men than women. The treatment for lip and oral cavity cancer depends on the stage of the cancer, but it may include surgery, radiation therapy, and chemotherapy. Risk factors for lip and oral cavity cancer The following are the major risk factors for lip and oral cavity cancer: Smo...
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