Fecal impaction (FI) is a serious condition in which a hardened stool gets stuck in the large intestine (colon), often resulting in the inability to pass stool. It often happens in people who have chronic constipation issues. Treatment involves clearing out the stool mass.

Fecal impaction is when stools dry and harden and remain in the rectum. These then cause obstruction in the rectum and stools cannot pass out. In the initial stages it is treated by administrating a high dose of osmotic laxative macrogol. Later stimulant laxatives can be taken. If these laxatives do not seem to help, medication might be required.