A. According to the National Institute of Health guidelines to qualify for weight loss surgery in the U.S. you should have a BMI of 35-40 plus any obesity related chronic health condition such as high blood pressure, diabetes, high cholesterol, infertility, and/or sleep apnea. Qualifying for weight loss surgery in Mexico is less stringent and based on your surgeon’s individual guidelines, it is typically easier to qualify for weight loss surgery in Mexico.