Renal function status in leprosy

75 leprosy patients comprising of 47 males and 28 females ranging in age from 10 years to 75 years (mean 33.76 years) were studied. Duration of disease ranged from one month to 12 years. Thirty (40%) cases were in reaction. Renal involvement occurred in 53.66% of cases. 80% of type 2 reaction leprosy patients showed renal involvement as compared to 53% of type 1 reaction. 80% of leprosy cases with more than 3 years duration of disease showed renal involvement as compared to 46.6% of cases with less than 3 years duration of disease. 9% of cases showed reduction in one or both kidney size with loss of corticomedullary differentiation on USG.