And also taking out that area where the ulcer is formed primarily.

同时切除疡形成的主要部位。

Eventually from inflammatory and cellular damage, ulcers form, which are almost like these craters in the intestinal wall.

最终，由于炎症和细胞损伤，疡形成，它们就像是肠壁上的一个个坑。

However, in some cases, a polyp can ulcerate causing rectal bleeding, and sometimes that bleeding can be very subtle and go unnoticed, but can result in anemia over time.

然而，在某些情况下，息肉形成疡，引起直肠出血，有时出血轻微，不易被发现，但久而久之可能发展为贫血。

Ulcerative colitis is a type of inflammatory bowel disease that tends to form ulcers along the inner-surface or lumen of the large intestine, including both the colon and the rectum.

疡性结肠炎是炎症性肠病的其中一种类型，其主要表现为沿着大肠内面或管腔形成的疡，这里所说的大肠包括结肠和直肠。