What condition is characterized by severe constipation requiring treatment?

The condition that is characterized by severe constipation requiring treatment is fecal impaction. This occurs when a large mass of dry, hard stool becomes stuck in the intestines or rectum, making it difficult or impossible to pass. Fecal impaction can lead to significant discomfort, abdominal pain, and even serious complications if not addressed promptly. Treatment may involve manual disimpaction, enemas, or laxatives to facilitate bowel movement.

In contrast, chronic diarrhea involves frequent, loose bowel movements and does not relate to constipation. Irritable bowel syndrome is a functional gastrointestinal disorder that can manifest with alternating symptoms of diarrhea and constipation but is not solely characterized by severe constipation. Gastroesophageal reflux is primarily associated with the backward flow of stomach contents into the esophagus and does not pertain to constipation at all.