Constipation is the most common gastro intestinal complication. It is characterised by less than three bowel movements per week, or bowel movement with dry hard stool that is difficult and painful to pass. Constipation could be as a result of inadequate water intake, poor diet, lack of or inadequate physical activity, stress or medication side effect. While it often lasts for a short period and is not dangerous, persistent constipation can be a symptom of a serious underlying condition that needs medical attention.