Have bariatric questions? Ask a bariatric Expert.

Ask a Doctor, Get an Answer ASAP!

Sleeve Gastrectomy Procedure

Have you or a loved one had to undergo a sleeve gastrectomy? Do you need to know the side effects? Often when a medical procedure is needed, patients are not always aware of what is involved in the procedure and at times not sure of the side effects or complications. Often Expert insight is needed to help clarify doubts and concerns.

What is Sleeve Gastrectomy?

A sleeve gastrectomy is a weight loss procedure where the stomach is reduced to 25% of the original size. This involves removing the large portion of the stomach and the resulting structure resembles a sleeve or tube. Although there could be dilatation of the stomach later in life, the procedure permanently reduces the size of the stomach. This procedure can be irreversible and is performed laparoscopically. When someone decides to have this procedure questions regarding the side effects, complications and the procedure can arise. Read below for questions that have been answered by Experts.

Would a sleeve gastrectomy cause chronic diarrhea?

If chronic diarrhea is occurring from this procedure, it could indicate that food is passing quickly through the intestines. Therefore, testing may be needed for transit time. This test could involve swallowing a gel capsule followed by an x-ray to check how fast this is passing through the bowels. Once the transit time is confirmed, medications can be used to prevent diarrhea. A consultation with a medical professional may be needed in order to discuss dumping syndrome.

What are methods to avoid gaining weight following a sleeve gastrectomy?

The biggest problem for weight gain after the procedure is sugar and carbs. Methods for avoiding weight gain include:
Do not drink calories. This can include milk, juice, soda, alcohol
Do not eat a lot of crunchy carbs. This includes chips, pretzels, popcorn, cold cereal and 100 calories snack packs.
Do not eat a lot of sweets and candy.

The weight is rarely gained back after this procedure if an individual follows these methods. Planning good meals can help an individual avoid carbs. Also, because metabolism is slowest during the night, an individual should avoid eating after dinner.

Could a sleeve gastrectomy cause hair loss?

Hair loss after weight loss surgery is expected. This could occur because of the shock of rapid weight loss. The hair loss may decrease when the weight loss slows down. The hair can be maximized by getting 80-120 grams of protein in the diet. Also, taking vitamins can be beneficial. If the hair loss continues after the weight loss stabilizes, a consultation with a medical professional is needed to check the vitamin levels.

What could cause nausea and vomiting after a sleeve gastrectomy?

Patients may only be able to eat small portions after this procedure. If someone is unable to keep anything down, there could be an underlying issue. An individual should be able to receive nourishment from soft and pureed foods if small amounts can be tolerated. If the small amounts are not possible, an upper gastrointestinal series x-ray may be needed to determine what the underlying cause may be.

Where can information about diets following sleeve gastrectomy?

For information about a diet that was developed by Northwestern University, click here. The information can be printed for easy access. This diet recommends that a pureed diet is followed for 3-8 weeks post-surgery. Then a soft solid food diet for weeks 9-12. A regular diet can be resumed 4 months after the procedure. For another diet, click here.

Anytime an individual considers or has had a sleeve gastrectomy, questions and concerns may arise. Questions pertaining to the side effects, methods for maintaining weight loss and information about diets should be monitored by a medical professional. For more information or for answers to these questions, an individual should contact an Expert.
Please type your question in the field below

3 verified Bariatric Physicians are online now

Bariatric Physicians on JustAnswer are verified through an extensive 8-step process including screening of licenses, certifications, education and/or employment. Learn more

Dr. Dan

Bariatric Physician (MD)

Doctoral Degree

385 positive reviews
Dr. Nina Lim

Bariatric Physician (MD)

Doctor of Medicine

19 positive reviews
Family Physician


Doctoral Degree

2592 positive reviews
See all Bariatric Physicians