Crohn’s disease is a chronic inflammatory bowel disease (IBD) that causes inflammation of the digestive tract, most commonly affecting the end of the small intestine and the beginning of the colon, though it can occur anywhere from the mouth to the anus. The inflammation often extends deep into the layers of the intestinal wall and can lead to symptoms such as persistent diarrhea, abdominal pain, fatigue, weight loss, and reduced appetite. The exact cause is not fully understood but is believed to involve an abnormal immune response influenced by genetic and environmental factors. Crohn’s disease may also cause complications such as strictures, fistulas, or nutritional deficiencies. While there is no cure, treatment focuses on reducing inflammation, controlling symptoms, preventing complications, and maintaining long-term remission through medications, dietary management, and sometimes surgery.