Gastric Bypass Risks & Side Effects — Gold Coast

Know the potential risks and how we work to reduce them before, during and after surgery.

Surgical risks

  • Bleeding, infection, anastomotic leak.
  • Deep-vein thrombosis (DVT) / pulmonary embolism (PE).
  • Internal hernia or bowel obstruction, strictures.

Functional effects

  • Dumping symptoms after high-sugar meals.
  • Marginal ulcers—risk increased by smoking and NSAIDs.
  • Nutrient deficiencies without long-term supplements and blood tests.

Need reflux control or diabetes improvement? Bypass may be preferred over sleeve—see Sleeve vs Bypass.

How we reduce risk

  • Pre-operative assessment and optimisation.
  • Experienced laparoscopic technique and careful checks.
  • Early mobilisation, DVT prevention and structured follow-up.

Have questions about risk?

Book a consultation

Risk FAQs

How common is a leak?

It is uncommon; meticulous technique and monitoring help reduce risk. Your individual risk is discussed in clinic.

Can I ever take NSAIDs after bypass?

Regular use is discouraged due to ulcer risk; your team will suggest alternatives.

Do I need lifelong vitamins?

Yes—long-term supplementation and scheduled blood tests are advised.