Umbilical hernia repair is a common painful outpatient procedure performed in children. Often analgesia for this procedure is provided by using local infiltration of the surgical site by the surgeons and perioperative opioids and NSAIDS both IV and orally. The use of opioids can cause adverse side effects which include, but are not limited to nausea, vomiting, itching, and respiratory depression, etc. The rectus sheath block can be performed in these patients to decrease their post operative pain.