Obesity may develop at any age in either sex and in as increasing health problem. Obesity develops over time and, once it develops, is difficult to treat. The excess of fat in men tends to accumulate in the upper abdomen. In women, the favoured sites for the accumulation of fat are the buttocks, hips and thighs. The site of fat accumulation is considered a predominant factor for metabolic disorders of obesity. However, the overall incidence of obesity was found to be higher among women than men. All subjects were explained about the procedures to be undertaken and written informed consent was obtained from them. A brief history, general physical examination and clinical examination of all the systems were done to exclude medical problems and to prevent confounding of results. The mean FVC (L) in non-obese male controls was 3.32 ± 0.33. The mean FVC (L) in obese male subjects was 1.82±0.51.There was statistically significant decrease in the value of FVC in obese male subjects compared to non-obese controls (p< 0.001).