Overlying site infection
Injury requiring close neurologic observation (e.g. Compartment Syndrome)
Allergy to chosen anesthetic
Underlying Neurologic Damage
Uncooperative Patient
Nerve Block: Foot
Nerve Block: Upper Extremity
Nerve Block: Ulnar Nerve
Nerve Block: Penile
Nerve Block: Radial Nerve
Nerve Block: Femoral
Nerve Block: Median
Nerve Block: Occipital