**Core Concept**
Parastomal hernias occur when abdominal contents, such as intestine or omentum, protrude through a stoma site, often resulting in a bulge or hernia. This complication typically arises in patients with a colostomy or ileostomy, where the stoma is created to divert fecal matter.

**Why the Correct Answer is Right**
Parastomal hernias are most frequently seen with **loop colostomies**, which involve creating a stoma that includes a loop of intestine. This type of stoma is more prone to herniation due to the increased tension on the abdominal wall and the presence of a larger opening for the stoma. The loop colostomy creates a larger defect in the abdominal wall, making it more susceptible to herniation.

**Why Each Wrong Option is Incorrect**
**Option A:** **End colostomy** is less commonly associated with parastomal hernias because it involves creating a stoma at the end of the colon, which has a lower risk of herniation compared to a loop colostomy. Additionally, end colostomies are often created in a more controlled manner, reducing the risk of complications.

**Option B:** **Ileal conduit** is a type of urinary diversion, not a type of stoma, so it is not directly related to parastomal hernias.

**Option C:** **Ileostomy** is a type of stoma, but it is not the most common type associated with parastomal hernias. While ileostomies can be prone to herniation, they are not as frequently affected as loop colostomies.

**Clinical Pearl / High-Yield Fact**
A key factor in preventing parastomal hernias is the use of a **stomal hernia-reducing technique**, such as a separate incision for the stoma or the use of a mesh to reinforce the abdominal wall.

**Correct Answer: C. Ileostomy. Ileostomy is a type of stoma that can be prone to parastomal hernias, but it is not the most common type associated with this complication.**