Medical Services

Postoperative malabsorption occurs when surgical intervention in the gastrointestinal tract compromises the body’s ability to absorb essential nutrients. This condition commonly follows procedures like bowel resection, bariatric surgery, or removal of the terminal ileum, where critical absorption sites are lost. The small intestine normally absorbs proteins, carbohydrates, fats, vitamins, and minerals; when its length or mucosal surface is reduced—particularly in short bowel syndrome—nutrient uptake declines significantly.

Key causes include loss of absorptive surface area, altered intestinal motility, bile acid malabsorption, and bacterial overgrowth in the remaining gut. Patients typically present with chronic diarrhea, steatorrhea (fatty stools), unintended weight loss, bloating, and fatigue. Over time, deficiencies in fat-soluble vitamins (A, D, E, K), vitamin B12, iron, calcium, and magnesium may develop, increasing risks of osteoporosis, anemia, and neurological complications.

Diagnosis involves stool tests for fat content, blood work for nutrient levels, and sometimes imaging or breath tests. Treatment focuses on dietary modification—small, frequent meals low in fat but high in easily digestible proteins—and aggressive supplementation of missing nutrients. In severe short bowel syndrome, parenteral nutrition may be required. Medications like bile acid binders, antibiotics for bacterial overgrowth, and motility-modifying drugs (e.g., trimebutine) can also help. Early nutritional intervention and long-term monitoring are essential to prevent complications and improve quality of life after gastrointestinal surgery.