Local- Loss of pain is produced by directly injecting local anesthetics into the area to be treated.
Spinal, Epiduraland Caudal- Involve an injection of a local anesthetic into the lower back between the vertebrae. These anesthetics are commonly used in obstetrics and surgical procedures of the lower abdomen, pelvis, and lower extremities.
Nerve blocks- involve the administration of the anesthetic agents in the area of a single group of nerves to numb the extremities our other parts of the body.
Intravenous block- involves the injection of a local anesthetic into the veins of an extremity; e.g., hand or forearm for carpal tunnel surgery.