The risk factors that can increase the risk of developing<unk>  are: Major *Performing open-mouthed kissing or oral/mouth-genital sex on a person(s) with a human papillomavirus infection (HPV); there are nearly 200 distinct human papillomaviruses (HPVs), and many HPV types are carcinogenic. *Smoking and chewing tobacco (see Health effects of tobacco); *Heavy alcohol use (see Long-term effects of alcohol consumption). Minor *A diet low in fruits and vegetables; *Chewing paan (betel quid), a stimulant commonly used in Southern and Southeast Asia; *Marijuana smoking (see Effects of cannabis); *Asbestos exposure (see Asbestos-related diseases); *Certain genetic changes including: P53 mutation and CDKN2A (p16) mutations; *Poor nutrition; *Plummer–Vinson syndrome. Precancerous lesions High-risk * Erythroplakia; * Speckled erythroplakia; * Chronic hyperplastic candidiasis. Medium-risk==== * Oral submucosal fibrosis; * Syphilitic glossitis; * Sideropenic dysphagia (Paterson-Kelly-Brown syndrome). Low-risk==== * Oral lichen planus; * Discoid lupus erythematosus; * Discoid keratosis congenita.
Oropharyngeal cancer
Laryngeal cancer
Adenoiditis
Epiglottitis
Hypopharyngeal cancer
Nasal polyp
Laryngeal cyst
Nasal septal abscess