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Bariatric Surgery

  1. Laparoscopic.MD
  2. QUESTIONS
  3. Bariatric Surgery

Why do you leave part of the stomach behind during a gastric bypass?

During a gastric bypass, the lower (distal) larger part of the stomach is left in place because of the stomach still produces acid and pepsin to help digestion of the food. These digestive juices travel down the duodenum and into the jejunum to mix with food. Removing the lower part of the stomach raises the possibility of complications without proven benefit

In rare cases, if for any reason a patient needs to have the operation reversed, the stomach is still there and can be hooked up again. This remnant stomach can also be used to help feeding if an unrelated serious medical problem should

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What can I do to prepare for surgery?

Bariatric surgery is like other major abdominal surgery. You can best prepare by knowing the benefits and risks of surgery, and by closely following your doctor's instructions.

– Understand the surgical process and what to expect afterward.
– Keep in mind that you’ll never be able to eat the way you did before, and that you’ll have to watch what and how you eat for the rest of your life.
– Talk to people who have had bariatric surgery.
– Write down your reasons for having bariatric surgery and outline your plans to maintain your weight loss after surgery.
– Practice the post-op diet

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What type of post op support do you have?

We have weekly support groups in both English and Spanish. Please call the office to check which is scheduled.
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Detailed question
There are a multitude of questions that people have regarding support after the operation. We have moved away from large support groups to smaller groups.

What type of post op support do you have?

The group meetings that you attended prior to surgery are available to all patients post surgery. We encourage you to remain part of the bariatric patient community. It is a good idea to come and ask questions and network with other patients. As you lose weight and gain confidence and enthusiasm it is important to remember that the surgery is not a cure for obesity. Attending group meeting will remind you that weight gain is a possibility and weight maintenance is hard work. If you have specific food related questions and already a patient of Dr. Belsley that please feel free to reach out to

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Why is my hair falling out and my fingernails breaking?

Patients who undergo weight loss surgery sometimes complain of problems with their hair and fingernails during the first year or so after the operation. They are a few possible explanations related to the stress state after the operation as well as possible nutritional deficiencies.

Immediately after a gastric bypass, you may lose as much as a pound or two of weight each day. When the body is losing weight this quickly, it sometimes goes into a stress state in order to conserve resources. The result of this is that hair and fingernail growth might not be the same as it was before the

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Is there an online support system of call center if I can't make it to group?

If you are unable to attend a group meeting you can call the office or email questions at any time. You can schedule a phone consult with the dietitian during office hours. You will not have the same experience as meeting with other patients in person. You may benefit from listening to their ideas and questions as well. There is no sense of urgency for the group meetings and you can come when it is convenient for you to attend.

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Scott Belsley, MD, FACS is a board-certified laparoscopic surgeon based in New York City

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