Gastrointestinal parasitic infection symptoms include abdominal pain, diarrhea, dysentery, flatulence, malabsorption and symptoms of biliary obstruction.
It can be caused by protozoan parasites and helminths.
Host susceptibility factors in gastrointestinal parasitic infections are nutritional status, intercurrent disease, pregnancy, immunosuppressive drugs and presence of a malignancy.
Knowledge of the geographic distribution of parasites is helpful in the diagnosis of patients.
A recent study by investigators from Hong Kong showed that poor sleep quality and longer sleep onset latency are associated with an increased risk of peptic ulcer disease (PUD) recurrence. Depression is also shown to be associated with subsequent incidence of PUD.