Is it possible after Roux-en-Y Gastric Bypass I'll weight around 130-140 lbs from 295 lbs?

Possible and probable are difficult things to discuss.  I would never say it's impossible for a young, very motivated person willing to lift weights 4-6d week or some for of strength training and add cardio exercising and careful structured eating to lose all of their excess weight. However, most patients lose about 1/3 of their total body weight or 50-70% of excess weight.  Any way you calculate the estimate, the variables that improve your odds of losing more are mobility and willingness to exercise, age, diabetes and some other medical conditions that might hamper weight loss should be evaluated by a trained physician.  Gastric bypass tends to offer more weight loss in current literature than the sleeve gastrectomy, however, follow up and long-term care in a dedicated program can equalize those results some.  If you plan on having children, some surgeons feel the sleeve gastrectomy is a safer choice due to lower risk of twisted bowel or internal hernia.Excess skin depends on genetics, where you carry your weight and age.  If you are willing to lift weights and do strength training this may greatly help.  The younger you are the better chance you have of a good cosmetic outcome.  Seek out guidance about this and avoid surgery for cosmetics or excess skin for at minimum 18 months after Bariatric surgery to allow you to reach your lowest weight and continue to change your body muscle composition. Good luck!

I calculated your BMI as 44.85 based on your current height and weight. Weight loss after bariatric surgery is expressed as percent of excess body weight lost. Your ideal weight is between 121 (=BMI 18.5) and 164 (=BMI 25). Then your excess weight is 131, meaning the amount over 164 (295-164=131). To lose 70% of 131 is losing down to 203 pounds. At 203 pounds your BMI would be 30.9. I am not saying it is impossible to lose down to 130-140, but losing about 100 pounds is more realistic. I tell my patients to wait and see where there lose skin is before pursuing plastic surgery. David Geller, MDBariatric Surgery