Nearly 10 percent of adult men and women in the U.S. are severely obese, 100 pounds or more over their ideal body weight. Significant weight loss for these individuals is important for their long-term health.

Bariatric surgery helps limit food intake and absorption, and it allows for the maintenance of long-term, healthy weight loss goals. These types of weight loss procedures can dramatically improve and control diseases like diabetes, high cholesterol, high blood pressure, sleep apnea and joint pain.

Not every person is a candidate to receive weight loss surgery. Weight loss surgery is an option for individuals who:

  • Are 100 pounds or more over their ideal body weight OR
  • Have a body mass index (BMI) of 40 or higher OR
  • Have a BMI of 35 to 39.9 with a diagnosed weight-related health problem, such as diabetes, high blood pressure or obstructive sleep apnea
  • Are 18 years of age or older
  • Are able to understand the risks of surgery and commit to the lifestyle and eating changes that will need to be made following surgery
  • Do not abuse alcohol or drugs

Weight loss surgery procedures

At HCA Houston Healthcare Tomball, we provide surgical weight loss options for people struggling with obesity. Your bariatric surgeon will work with you to figure out what type of weight loss surgery is best for you.

All of our bariatric procedures are minimally invasive, which allows for greater surgical precision, minimal scarring, less blood loss and a faster recovery time.

Our surgeons perform the following weight loss procedures:

Roux-en-Y gastric bypass surgery

By rerouting a portion of the intestine, the surgeon is able to create a small stomach pouch that empties directly into the lower portion of the intestine, preventing calories from being absorbed.

Roux-en-Y is considered the gold standard of weight loss procedures. Following surgery, many weight-related medical conditions show rapid improvement.

Sleeve gastrectomy surgery

The surgeon creates a small, sleeve-shaped stomach that is slightly larger than the stomach pouch created during a Roux-en-Y. This procedure is completed through one small incision and permanently reduces the size of the stomach by around 85 percent.

Lap band surgery

An adjustable gastric band is inserted creating a smaller stomach pouch. This slows the patient’s digestion and allows him or her to feel full sooner and longer. This procedure is performed through a small incision. The band’s restriction can be adjusted through inflating or deflating, depending on the patient. Lap bands are removable.

Revision surgery

Revision surgery is for patients who have already received a bariatric surgical procedure, which did not lead to a significant level of weight loss.

If you have questions or would like more information about bariatric surgery at HCA Houston Tomball, please call (281) 401-6457.

Preparing for bariatric surgery

There are a number of steps that bariatric surgery candidates must take in order to properly prepare for their procedure. Here is a general overview of the steps a patient must complete in order to prepare for weight loss surgery:

  • Consult with one of the bariatric surgeons at HCA Houston Healthcare Tomball who will refer you and set up appointments with a dietician and psychologist.
  • If weight loss documentation is required, you would meet with a dietician or physician for three to six months and follow a diet and exercise program provided for you.
    • Six months required supervised diet for Medicaid patients
    • Four months required supervised diet for Medicare patients
    • Requirements vary for private insurance
  • Have a dietary evaluation, a one-time visit explaining your diet after surgery.
  • Receive psychological clearance.
  • Medical clearance, your bariatric surgeon will provide you with orders to give to your family doctor.
  • Depending on your medical history, some patients may require clearance from a cardiologist and/or pulmonologist.
  • Check for any stomach or anatomical abnormalities.
  • Once all clearances are completed, your paperwork will be submitted for approval. Once you are approved, you may schedule your weight loss procedure.

Body mass index (BMI) calculator

BMI reflects the ratio between your height and weight, and it helps determine your weight management treatment options, like bariatric surgery. BMI is not gender specific and is not a direct measurement for the percentage of body fat. It is a more accurate indicator of being overweight or obese than strictly relying on an individual’s weight.

BMI Calculator

Body Mass Index (BMI) is a number calculated from a person's weight and height. BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.


Your BMI Score is:


Your BMI indicates that you are underweight.

Congratulations! Your BMI indicates that your weight is in the healthy range. A lifestyle of good food choices and routine exercise will help you with long term weight management.

Your BMI indicates your weight is in the obese range and can have a significant impact on your health. You are at risk for weight related health conditions. If you have been diagnosed with a health condition related to obesity, then weight loss surgery could be right for you. To learn more about the surgical procedures for obesity, please contact us for more information, or sign up for a free seminar schedule and registration.

All information provided by this website is intended to be general in nature and should not be used as a substitute for a visit with a health care professional. No information provided in this site may be considered medical advice. The information may not be relevant for your individual situation and may be misinterpreted. HCA assumes no responsibility for how you use information obtained from this site. Before making any decisions regarding your health care, ask your personal physician.

Bariatric surgery at HCA Houston Healthcare

Bariatric surgery, also commonly referred to as weight loss surgery, is generally performed on patients struggling with obesity. There are several types of bariatric surgery, but they all aim to decrease food intake with the goal of rapid weight loss.

Learn about Bariatric surgery