How to Do Rectal Washouts for Hirschsprung Disease

Yes, you will likely need to perform rectal washouts (also called irrigations) at home for your baby with Hirschsprung disease before their pull-through surgery, and occasionally afterward if they develop complications. While the idea of performing an invasive medical procedure on your newborn is understandably anxiety-inducing, rectal washouts do not cause physical pain ^[1][2]. The process is uncomfortable, and your baby will likely cry—mostly because they dislike being held still, the unusual sensation of the catheter, and the shifting of trapped gas.

The Purpose of Rectal Washouts

Washouts are a critical, life-saving part of managing Hirschsprung disease. Because your baby’s bowel lacks the nerve cells needed to push stool forward, gas and stool become trapped. Washouts help to decompress (empty and relieve pressure in) the bowel ^[3][4].

Doing this regularly at home prevents extreme, painful bloating and significantly lowers the risk of a dangerous bowel infection called Hirschsprung-associated enterocolitis (HAEC) ^[5][3]. By keeping the bowel empty and healthy, washouts often allow babies to grow safely at home before undergoing a single planned surgery, reducing the need for an emergency stoma (a surgical opening in the belly for stool) ^[6][4].

How the Procedure Works

Although the thought of doing this yourself can feel overwhelming, your medical team will teach you the exact technique before you leave the hospital ^[3][7]. Depending on your baby’s needs, you will typically do this 1 to 3 times a day, with each session taking about 15 to 30 minutes.

Every surgical team has a specific protocol, but the process generally involves:

• Preparation: Gathering a syringe, warm normal saline, and an extremely soft, flexible silicone catheter (tube) that is specifically designed for tiny babies ^[4].
• Positioning: Because squirming is expected, it is incredibly helpful to have a second caregiver assist at first. Swaddling the top half of your baby’s body and offering a pacifier can help keep them calm and secure.
• Insertion: Gently placing the well-lubricated catheter into the baby’s rectum.
• Flushing and Draining: Slowly pushing a specific, prescribed amount of warm saline into the bowel. Then, using gravity, you let the saline, trapped gas, and liquid stool drain out into a basin or diaper ^[4][3].
• Repetition: Repeating this gentle flush-and-drain process until the liquid drains clear and your baby’s belly feels soft.

CRITICAL WARNING: You must only use the specific normal saline prescribed by your team ^[4]. Never use plain tap or bottled water, as this can cause dangerous fluid shifts, electrolyte imbalances, and seizures in infants.

It is absolutely essential to follow your surgical team’s exact instructions regarding the size of the catheter, the exact volume of saline per flush, and how far to insert the tube ^[8][9].

Safety and When to Call the Doctor

When taught properly by a medical professional and done carefully, home irrigations are highly safe and effective ^[10][11]. However, because there is an extremely rare but serious risk of rectal perforation (a tear in the bowel wall), you must never force the catheter if you feel resistance ^[12][13].

Stop the washout and call your doctor immediately or go to the emergency room if you notice any of these red flags:

• Bright red blood on the catheter or in the stool ^[12]
• A sudden, hard, severely swollen belly that does not go down after a washout
• Signs of HAEC, such as a fever, extreme lethargy, vomiting, or explosive, foul-smelling diarrhea ^[14][15]