Without a graft, the healing usually takes a lot longer and scar tissue is more noticeable.

CNN: Scalp burns painful, need urgent care

In Peyronie's disease, problems in the normal wound-healing process result in permanent scar tissue.

CNN: Peyronie's disease

"There will be a non-healing scar .. always affixed to my name" in the wake of the media frenzy that came after his name was leaked as a suspect in the bombing.

CNN: With Jewell cleared, FBI turns elsewhere