Today, obesity is the major concern and obese patients are at higher risk of developing pulmonary complications. Incentive Spirometry is widely used worldwide to reduce rates of pulmonary complications. In this study, Effect of Incentive Spirometry (IS) on Post Operative Bariatric Patients (Male and Female) will be studied on patients about sample size of 140 including male and female gender, BMI above 30 kg/m2 having Post Operative Bariatric Surgeries with chances of generating Pulmonary complications.

Research will be conducted in Shalamar Hospital Lahore and data will be collected through predesigned proforma. In previous studies some studies show positive and but some studies don't recommend Incentive Spirometry as a post operative Rehabilitation therapy.But this therapy device is still used in present days in Post Operative patients to prevent pulmonary complications. In this study we conclude the positive or negative effect of Incentive Spirometry.

Inclusion Criteria:

• Patient having weight above 25 BMI
• Age between 18 years to 60 years
• having Post Operative pulmonary complication.
• Bariatric patients (Sleeve gastrectomy,Mini gastric Bypass,Sleeve gastrectomy to gastric bypass ,sleeve re do surgery)..

Exclusion Criteria:

• Patients weight below 25BMI.
• other abdominal surgeries.
• Patients having absence of teeth.
• Patients age below 18 years .

population included Complications After Bariatric Surgery to check the Effects of Incentive Spirometry on Post-operative Pulmonary