Does make mouth pain,growths gum thickenings bumps red patches together always mean oral cancer?if not what else can be.22 occasional smoke marijuana

Not always: It could be pre-cancerous inflammation that will resolve once smoking habit is gone. The only way to know for sure what is going on is by having an evaluation by a general dentist or oral surgeon.

Unlikely, but: Unlikely, but - 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.