As with any major surgery, gastric bypass and other weight-loss surgeries pose potential health risks, both in the short term and long term.

Risks associated with the surgical procedure can include:

  • Excessive bleeding
  • Infection
  • Adverse reactions to anesthesia
  • Blood clots
  • Lung or breathing problems
  • Leaks in your gastrointestinal system
  • Death (rare)

Longer term risks and complications of weight-loss surgery vary depending on the type of surgery. They can include:

  • Bowel obstruction
  • Dumping syndrome, causing diarrhea, nausea or vomiting
  • Gallstones
  • Hernias
  • Low blood sugar (hypoglycemia)
  • Malnutrition
  • Stomach perforation
  • Ulcers
  • Vomiting
  • Death (rare)
Apr. 07, 2014

Products and Services

  1. Book: The Mayo Clinic Diet