Study and evaluation of the prevalence of measles and its complication in vaccinated and non- vaccinated patients. To evaluate the prevalence of complications of measles among different age groups of children in the pedriatric ward. Clinical description of a case series. Children of different age groups suffering from measles. We have observed 315 measles patients in the pediatric ward of Bahawal Victoria Hospital in Bahawalpur. They were evaluated on the basis of complications. Different complications were observed in children of different age group and gender, and the main complications were encephalitis, conjunctivitis, pneumonia, diarrhoea and ear infections. Children of age less than 1 year to 7 years were observed, and it was observed that conjunctivitis, pneumonia and diarrhoea were among the most common complications, while encephalitis and ear infections were rare. Patients admitted to the pedriatric ward having long term complications have a high risk of death when treated. These patients were due to malnutrition and improper vaccination coverage, and improper vaccine storage. Respiratory distress, i.e., pneumonia, diarrhoea, conjunctivitis, ear infection and encephalitis, were the most common complications. To reduce the severity of these complications, mechanical ventilation, antibiotics treatment, electrolyte balance should be instituted early in patients with measles.