I damaged my peroneal nerve in a motorcycle accident but it is not cut will it heal?

All details matter when it comes to injuries to nerves. Partial recovery is expected in majority of cases, overall function, range of motion may be influenced. Physical therapy always needed to ensure maximal recovery.

If the damage is superficial to solely the nerve coverings (myelin), should resolve by 4 weeks. If the central portion of the nerve is damaged (axon), regrowth could be as slow as 0.1mm per day. An EMG test will help objectify.

Many partial injuries to nerves can heal. Some heal to only partial recovery. Nerve studies can help assess amount of damage. Nerves can be very slow to heal, up to a year.