There are a few potential side effects of C3R surgery. These include: Infection: The chances of developing an infection after c3r surgery are low, but it is still a possibility. Scarring: Surgery may result in scarring. The amount and severity of scarring will depend on the individual. Bleeding: There is a small risk of bleeding during or after surgery. Nerve damage: There is a very small risk that nerves can be damaged during surgery.  Pain: Some people experience pain after c3r surgery, although this is usually mild and manageable