Irritable bowel syndrome (IBS) is characterized by abdominal pain or discomfort, changes in bowel habits (diarrhoea, constipation, or both), varying stool consistency, bloating, excessive gas production, cramping, and the presence of mucus in the stool. These symptoms can be triggered or worsened by factors like certain foods, stress, and hormonal changes. It is important to consult with a healthcare professional for a proper diagnosis and personalized management plan for IBS.