Irritable bowel syndrome is a gastrointestinal tract disorder characterized by abdominal pain and altered bowel habits. It hampers the natural movement of intestinal muscle linings to move food along the digestive tract. Depending on the symptoms, the syndrome is distinguished as mild and severe irritable bowel syndrome. These symptoms include cramping, abdominal pain, bloating and gas, mucus in the stool, constipation, and diarrhea. Exact cause of occurrence of irritable bowel syndrome is unknown though, it is associated with increased awareness of bodily functions, and abnormal gastrointestinal tract movements. Diagnosis of irritable bowel syndrome is done by tests such as blood tests, stool tests, endoscopic procedures and external imaging procedures. Patients suffering from irritable bowel syndrome may experience complications namely, deep ulcerations, infections, and malnutrition and bowel obstructions. Treatment of irritable bowel syndrome involves relieving the patient from the symptoms and improving the quality of life.