Will blowing your nose often cause nose/mouth cancer?

No: But try to be gentle, avoid injury and irritation, use humidifier, or saline spray to moisten the nose.

No: Blowing your nose does not cause cancer.

Never: No chance. See oral surgeon or ENT doc if you have any of these symptoms: Persistent mouth sore, persistent mouth pain, a lump or thickening in the cheek, a white/red patch on the gums, tongue, tonsil, or lining of the mouth, a sore throat, hoarseness or feeling that something is caught in the throat that does not go away, difficulty swallowing/chewing.