How to Treat Diarrhea With a Colostomy

Diarrhea with a colostomy is characterized by liquid or unusually watery discharge, significantly exceeding the individual’s normal semi-formed or pasty output. High output is considered abnormal if it exceeds 1,000 milliliters (1 liter) in a 24-hour period, which presents an immediate risk. The rapid loss of fluid and essential salts, known as electrolytes, requires prompt treatment to prevent dehydration and potential kidney issues.

Identifying the Cause of Increased Output

Understanding the trigger for increased colostomy output is key to effective management. A common culprit is a recent change in medication, particularly antibiotics, which disrupt the gut microbiome and cause high-volume, loose output. Non-antibiotic medications, such as laxatives or some pain medications, can also increase the speed of bowel transit.

Dietary indiscretion is another frequent cause, often involving new or unusual foods the digestive system is not accustomed to processing. High output may also signal a viral or bacterial infection, such as gastroenteritis or food poisoning. If the increase is accompanied by fever or severe cramping, an infection is more likely and requires specific medical attention. Keeping a log of recent food intake, new medications, and the timing of the change helps pinpoint the exact trigger.

Immediate Action for Fluid and Electrolyte Replacement

When high-volume, watery colostomy output begins, the immediate priority is replacing lost fluid and electrolytes. Rapid transit through the bowel reduces the body’s ability to absorb water and salts, leading to a high risk of dehydration. An oral rehydration solution (ORS) is essential, as it is specifically formulated with the correct balance of sodium, glucose, and other electrolytes.

The combination of salt and sugar in ORS facilitates water absorption into the bloodstream. Plain water or standard sports drinks are less effective because they lack the necessary sodium concentration or contain too much sugar, which can worsen output. Sip the ORS slowly throughout the day rather than drinking large volumes at once.

Monitor for signs of dehydration, including excessive thirst, dry mouth, and muscle cramping. Dark yellow urine or output decreasing significantly to less than 1 liter per day signals the need for increased rehydration.

Dietary Strategies for Thickening Stool

Dietary modifications are essential for managing and reducing watery colostomy output. Certain foods contain soluble fibers or starches that absorb excess fluid in the digestive tract, helping to bind the output and slow transit time. These thickening foods should be the focus of the diet during high output episodes.

Foods to help thicken output

  • Starchy items like white rice, pasta, and peeled potatoes
  • Binding fruits such as bananas and applesauce
  • Smooth nut butters
  • Pretzels and saltine crackers
  • Marshmallows, which contain gelatin that helps solidify the output

Conversely, certain foods and drinks must be temporarily avoided because they act as intestinal stimulants or osmotic agents, pulling water into the bowel.

Foods and substances to temporarily avoid

  • High-sugar beverages and fruit juices, which worsen diarrhea through osmosis
  • Spicy foods
  • Large quantities of raw vegetables high in insoluble fiber
  • Caffeine, as it stimulates the bowel and increases output volume

Adding extra salt to meals or consuming salty snacks like broth or pretzels helps replace lost sodium and aids fluid absorption.

Recognizing When Medical Intervention is Necessary

While many episodes of high colostomy output can be managed through dietary and fluid adjustments, certain signs indicate that professional medical help is required. Contact a stoma nurse or physician if the high, watery output persists despite consistent self-treatment for more than 24 to 48 hours.

Signs of severe dehydration, such as dizziness upon standing, extreme fatigue, or a significant decrease in urination, warrant immediate medical attention. Other symptoms include fever, severe, unrelenting abdominal pain, or output containing noticeable fresh blood or excessive mucus. These symptoms may point to an infection, a partial obstruction, or an inflammatory condition requiring treatment.