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How Safe is Bariatric Surgery?

By Kyle Cassling, MD January 28, 2026 Posted in: Weight Management

When it comes time to talk about bariatric surgery, one of the most common questions patients ask me is “how safe is surgery?”

Like with any operation there are some risks but safety is always our top priority. When surgeons first started performing bariatric surgeries, the risks were higher. But today, with advancements in minimally invasive surgical techniques and the steps we take to prepare patients for an operation, bariatric surgery is more safe and less invasive than ever before.

Considering the Benefits vs. the Risks

For many patients considering bariatric surgery, the pros of an operation outweigh the risks. This is especially the case when considering the lifelong impact of multiple diseases that are often associated with obesity like diabetes, heart disease, and sleep apnea. Bariatric surgery significantly reduces the risk of death from these conditions and also decreases the chances of future health problems like many cancers. For many patients who compare these risks and benefits, the benefits far outweigh the risks.

So what are the risks of surgery? The main categories of risks I discuss with all my patients include pain, bleeding, infection, possible injury to structures during surgery, and the risks of anesthesia. With the help of a risk calculator, we review just how low those risks are based on each patient’s unique history and characteristics so you can feel informed about your choice to have bariatric surgery.

Weight loss surgery is a very safe and incredibly effective tool for treating obesity and its related health conditions with a goal of leading a longer, healthier life. If you're considering this option, please reach out to our CHI Health Weight Management team to schedule a visit.

 

Kyle Cassling, MD
Kyle Cassling, MD

Kyle Cassling, MD is a Bariatric and General Surgeon with CHI Health.

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