Используйте «impaction» в предложении

1. With fecal impaction, the fluids might not be enough to break up the impacted stools

2. As a result of pain you may experience delayed or incomplete stools, as mentioned earlier these problems can cause chronic fecal impaction, causing even more problems, including diverticular disease, irritable bowel syndrome, ulcerative colitis, precancerous polyps, and even colorectal cancer