What is gastric bypass and gastric sleeve

 Sometimes weight loss can be the most difficult thing of all. It can become the biggest obstacle in one's health. People who are tired of diets and gyms go for options like bariatric surgeries to lose the excess weight. Bariatric surgery is basically weight loss surgery that is suitable when all the diet plans fail and weight loss techniques stop working. Most common bariatric surgeries are gastric bypass and gastric sleeve. These two often get confused as one although there are major differences between these procedures. In this blog I will tell you all you need to know about both the procedures in order to understand which one will suit you the best.


Gastric bypass and gastric sleeve are totally different procedures but both are performed for weight loss. However, in both procedures the patient loses a noticeable amount of weight. In both procedures the recovery time is almost the same. Gastric bypass is the traditional bariatric procedure but gastric sleeve is the modern one and is less invasive than gastric bypass. Here are is all you need to know about both procedures:

Gastric bypass procedure vs gastric sleeve procedure:

Gastric bypass: In gastric bypass also known as roux-en-Y gastric bypass procedure the doctor removes a part of your stomach and creates a small new stomach pouch. He then, bypasses half of your small intestine then, the stomach pouch is connected to the bypassed small intestine. This removes the part of the stomach and small intestine which absorbs most of the calories resulting in weight gain.


Gastric sleeve: In gastric sleeve also known as sleeve gastrectomy procedure the doctor removes 80 percent of your stomach and sews it into a small pouch. Except this, no other changes are made. Gastric sleeve makes your stomach smaller in size which prevents you from eating large portions of food and you feel full after consuming a small portion.

Difference in weight loss?

Gastric sleeve:  in gastric sleeve patients should expect to lose 60 to 70 percent of excessive weight in the first 12-16 months. The weight loss is steadier but slower as compared to the gastric bypass procedure.


Gastric bypass: in gastric bypass the patient should expect to lose 60-80 percent excessive body weight in the first year or year and a half. Gastric bypass makes patients lose weight quickly compared to gastric sleeve.

Recovery time?

Both gastric bypass and gastric sleeve procedures require almost equal time for recovery. Mostly the patients recover in 3-4 weeks but some can take more time. It depends on the recovery speed of your body. Some recover faster than others while some take a bit more time than 3-4 weeks.

Which one is suitable for you?

You are eligible for gastric bypass if you have a BMI equal to 40 or if you have health problems related to weight such as heart disease, type 2 diabetes, sleep apnea or high blood pressure. You can go for gastric bypass procedure with the consultation of your doctor if are obese with weight over 100 pounds 


Gastric sleeve is considered to be the most reliable modern solution in bariatric surgeries. Gastric sleeve is less invasive as there is only removal of part of the stomach in order to make it small. There is no reconnecting of the intestines. Gastric sleeve is suitable for morbidly-obese people. People with a BMI of 40 or higher or people with weight over 80 to 100 pounds above their ideal body weight. You can also qualify for gastric sleeve if you have excessive weight and are facing problems like joint pain, hypertension, asthma, diabetes or sleep apnea.

What else is necessary before going for bariatric surgery?

You have to go under proper checkup and testing before going for surgery. Your doctor will keep a check on your health to avoid any complications during surgery. You might have to follow up with eating and exercise schedules before surgery. Some people have health complications which make surgery difficult, so let your doctor know all your medical history to stay on the safe side. Other than this, you have to be mentally prepared for the stress of surgery and for changes as there are going to be major changes in your lifestyle and you will have to maintain your health to the utmost of your ability with proper care.


If you are looking forward to going for bariatric surgery, first consider a good hospital with qualified and experienced surgeons with a past history of quality work and satisfied patients. Weight Loss surgery Pakistan is offering all types of obesity surgeries, cosmetic surgeries and treatments. They have expert professionals working with them and are offering their services in some of the known and facilitated hospitals. They provide their patients with utmost care and the best services with the best affordable expense possible. If you are considering places to get the best outcome, Weight Loss Surgery Pakistan can make a good one!

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