Can a patient develop iron deficiency following a cholecystectomy (surgical removal of the gallbladder)?

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From the Guidelines

Yes, a patient can develop iron deficiency following a cholecystectomy, though it is not a direct or common complication of the surgery itself. The gallbladder's primary function is to store and concentrate bile, which aids in fat digestion, not iron absorption. However, after gallbladder removal, some patients experience changes in bile flow and digestive function that can indirectly affect nutrient absorption. These changes may include altered bile release timing, diarrhea, or fat malabsorption, which can potentially interfere with iron absorption in the small intestine.

Key Considerations

  • Additionally, if a patient develops post-cholecystectomy syndrome with symptoms like chronic diarrhea, this could further compromise iron absorption or increase iron loss.
  • Patients who experience significant gastrointestinal symptoms after cholecystectomy should have their iron levels monitored, especially if they have risk factors for iron deficiency such as menstruation, pregnancy, or a diet low in iron-rich foods.
  • According to the most recent study 1, iron deficiency anemia (IDA) can occur after surgical procedures that disrupt normal duodenal iron absorption, highlighting the importance of monitoring iron levels in patients with gastrointestinal symptoms after surgery.

Treatment and Monitoring

  • Treatment would involve addressing any underlying digestive issues and possibly iron supplementation if deficiency is confirmed through blood tests measuring hemoglobin, ferritin, and iron saturation levels.
  • As suggested by 1, intravenous iron supplementation may be preferred in patients with severe iron deficiency anemia or when oral supplementation is ineffective.
  • Regular monitoring of iron levels is crucial, especially in patients with a history of iron deficiency or those at risk of developing it, as recommended by 1.

From the Research

Iron Deficiency and Cholecystectomy

  • There is no direct evidence in the provided studies that links cholecystectomy (surgical removal of the gallbladder) to the development of iron deficiency 2, 3, 4, 5, 6.
  • However, it is known that certain surgical procedures, such as bariatric surgery, can lead to iron deficiency due to malabsorption of iron 2.
  • Cholecystectomy may lead to changes in bile flow and composition, which could potentially affect nutrient absorption, including iron 3.
  • Iron deficiency anemia is a common condition that can be caused by various factors, including blood loss, pregnancy, and certain medical conditions 4, 5.
  • Treatment of iron deficiency anemia typically involves iron supplementation, which can be administered orally or intravenously 2, 4, 5.

Post-Cholecystectomy Syndrome

  • Post-cholecystectomy syndrome (PCS) is a condition that affects some patients after undergoing a cholecystectomy, characterized by persistent or recurrent symptoms 6.
  • The causes of PCS are varied and can include extra-biliary causes, such as gastric or intestinal disorders, as well as retained biliary stones or sphincter of Oddi dysfunction 6.
  • While PCS can cause a range of symptoms, including abdominal pain, diarrhea, and fatigue, there is no direct evidence to suggest that it is related to iron deficiency 6.

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Iron supplementation following bariatric surgery: A systematic review of current strategies.

Obesity reviews : an official journal of the International Association for the Study of Obesity, 2021

Research

Cholecystectomy and risk of metabolic syndrome.

European journal of internal medicine, 2018

Research

A systematic review of the aetiology and management of post cholecystectomy syndrome.

The surgeon : journal of the Royal Colleges of Surgeons of Edinburgh and Ireland, 2019

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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