Hepatic artery thrombosis usually occurs as a devastating complication after liver transplantation. Gastrointestinal perforation is a rare complication of ileal infection. Severe hepatic dysfunction is a rare complication. Anemia is the most prevalent extraintestinal complication of inflammatory bowel disease. Another complication of PDA is intraventricular hemorrhage. Infection represents the primary non-cardiac complication from cardiothoracic surgery. Seizures were another common complication of surgery. Complicated diverticulosis requires treatment of the complication. Lung fibrosis is a recognized complication of rheumatoid arthritis. Dehydration is a common complication of diarrhea. The major complication of general anaesthesia is malignant hyperthermia. The incidence of this complication is low. Enterococcal meningitis is a rare complication of neurosurgery. Miscarriage is the most common complication of early pregnancy. Hypoxia is a common complication of preterm birth in newborn infants.