IBS, short for Irritable Bowel Syndrome, is a gastrointestinal disorder that affects millions of people worldwide. There are several synonyms for IBS, including spastic colon, nervous colon, functional bowel disease, and mucous colitis. These terms are used interchangeably to describe the symptoms of IBS, which may include abdominal pain, bloating, constipation, and diarrhea. While the exact causes of IBS remain unknown, it is believed that stress, genetics, and certain foods may trigger or exacerbate the condition. Treatment options for IBS include dietary changes, stress management techniques, and medication to alleviate symptoms.