What Is an Ileostomy?

An ileostomy is a surgical opening in the ileum (last part of the small intestine) that diverts waste into an external pouch. It’s created when the colon is removed or bypassed due to Crohn’s disease, ulcerative colitis, familial adenomatous polyposis (FAP), or trauma.

Unlike a colostomy, an ileostomy produces liquid, enzyme-rich output because the colon — which absorbs water — is not involved. This requires different diet, hydration, and pouching strategies.

According to the Crohn’s & Colitis Foundation, over 100,000 Americans live with an ileostomy. Most adapt within 6–12 weeks.

Source: Cleveland Clinic

Types of Ileostomy: Location & Output

There are two main types of ileostomy:

  • End Ileostomy: Permanent. Ileum is brought through the abdomen as a single stoma.
  • Loop Ileostomy: Temporary. A loop of ileum is pulled out, creating two openings (one active, one mucus fistula).
End vs loop ileostomy diagram

Output is typically 600–1200mL/day. High-output (>1500mL) is common in the first 6 weeks.

Ileostomy Diet: Foods to Eat & Avoid in 2025

After 6–8 weeks, most foods are allowed with an ileostomy. The goal is to thicken output, prevent dehydration, and avoid blockage.

Key Rules:

  • Drink 8–12 cups of fluid daily (more if high-output)
  • Eat saltier foods to retain sodium
  • Chew well to prevent food bolus obstruction
  • Separate fluids and solids by 30 minutes
GoalEatLimit
Thicken OutputMarshmallows, peanut butter, pasta, bananas, riceFruit juice, beer, caffeine
Prevent BlockageCooked veggies, peeled fruitsCelery, corn, mushrooms, nuts
Replace ElectrolytesSports drinks, broth, pretzelsWater alone (dilutes sodium)

Source: Crohn’s & Colitis Foundation

High-Output Ileostomy Management

Output >1500mL/day is common early on. Use:

  • Thickeners: Marshmallows, gelatin, pectin
  • Medications: Loperamide (Imodium), codeine (with doctor)
  • ORS: WHO formula or DripDrop
  • Monitor weight and urine color daily

High-output can lead to dehydration and kidney issues — see your doctor if persistent.

Daily Pouch Care & Skin Protection

Ileostomy output is caustic — protect skin:

  • Change pouch every 3–5 days
  • Use convex barriers for flush/retracted stomas
  • Empty when 1/3 full
  • Apply crusting for denuded skin
Ileostomy pouch system with convex barrier

Clothing & Concealing Your Ileostomy

Wear anything! SIIL Ostomy underwear hides liquid movement and supports the pouch.

SIIL Ostomy high-waisted underwear for ileostomy

Sports, Work & Exercise

Resume after 8 weeks. Use hernia belt for lifting. Swimming is safe with waterproof tape.

Travel Tips with an Ileostomy

  • Pack 3x supplies
  • Bring ORS packets
  • Use seatbelt pad

Intimacy & Relationships

Resume at 4–6 weeks. Empty pouch. Use mini pouches or covers.

Complications & When to Call Your Doctor

Call if: No output >6 hrs, severe cramps, dehydration signs.

Frequently Asked Questions

Can I eat normally with an ileostomy?

Yes — after 6–8 weeks. Focus on thickeners and hydration.

How do I manage high-output ileostomy?

Use thickeners, limit fluids with meals, monitor sodium.

Can I wear regular clothes with an ileostomy?

Yes — SIIL Ostomy underwear hides and supports.