Can Styling Chemicals Cause Disfigurement?

is it possible that the chemicals in perms and hair relaxing products misfigure or cause dents in ones scalp? and what cause dents in scalp besides direct head trauma externally?

I don’t believe that relaxing products and perms will cause physical deformities like dents in your scalp. They are known to cause hair loss and burns when associated to allergies or misuse.