Medical concerns

You'll likely have a medical exam before surgery to look for any unknown weight-related conditions. Your healthcare professional also may test for health conditions that could make surgery more complicated. You may have tests or screening for:

• Obstructive sleep apnea.
• Heart and blood vessel disease, called cardiovascular disease.
• Kidney disease.
• Liver disease.
• Thyroid disease.
• Gout.
• Certain cancers, including breast, endometrial and prostate cancers.

Weight-loss surgery may not be safe for you if you have certain conditions such as:

• A blood-clotting disorder.
• Severe heart disease that makes it unsafe for you to have anesthesia.
• Other conditions that raise the risk of using anesthesia.
• Mental illness or psychosis that is not treated.
• An eating disorder that is not controlled or treated.
• A substance use disorder.