Diabetes mellitus is a public health problem in developing and developed world. Diabetes is a complex medical syndrome in which microangiopathy is brought in by the non-enzymatic glycosylation of various scleroproteins in lungs and elsewhere. Type 2 diabetes mellitus is characterized by persistent hyperglycaemia and abnormal metabolisms of carbohydrates, proteins and lipids.Out of its various complications like cardiovascular , nephropathy, retinopathy, and neuropathy, the pulmonary complications are poorly characterized.so we conducted this study to assess the effect of hyperglycemia on lung functions.We found that spirometric values were lower in subjects with type 2 diabetes mellitus than in non-diabetic.
