Irritable Bowel Syndrome is a functional gut disorder characterized by abdominal pain, altered bowel habits and bloating. Its exact cause is multifactorial: altered gut-brain interaction, sensitivity to normal gut activity, motility changes, post-infectious changes and diet triggers can all play roles. Diagnosis usually follows symptom-based criteria, excluding warning signs that suggest other conditions. Management combines education, dietary adjustments, stress management, fibre modulation, targeted medications for pain or bowel habits, and psychological therapies when needed. Regular review helps refine strategies and improve day-to-day quality of life.