### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I was just diagnosed with gallstones, i only weigh 135, i am 5 foot 7 and 18. I want to know why this most likely happened and also if i will lose or gain weight after surgery. I live a very healthy life-workout, vegetarian and barley eat any fat... please give me information. THANKS!

### output:

Hi.noted history of gallstones. Stone formation usually happens when you have high cholesterol/fatty intake in your diet through the years, not just in relation to your current diet. To answer your question, no, surgical removal of the gallbladder will not affect your weight. It is depended on your diet and lifestyle. It is best if you consult with a doctor, preferably a general surgeon or a gastroenterologist, for physical examination and clinical evaluation. Your gallbladder disease might have been there for a long time already (chronic cholecystitis). If your symptoms are occurring more frequently, surgical management will be advised, because you don't want your condition to be an emergent one. An elective (scheduled/planned) surgery has better outcomes and lesser risk of developing complications. Diagnostics (such as ultrasound, bilirubin, alkaline phosphatase, liver function tests, blood count, etc.) and management (medical and/or surgical if indications are found) will be directed accordingly. Definitive treatment for gallstone disease is surgical removal of the gallbladder (along with the stones). It could be done laparoscopically (gold standard) or through open technique. Low fat diet is also recommended. Hope this helps. Good day!!~ Chat Doctor. 