The Effects of Vasectomy on Testicular Volume

Testicular volumes of 15 subjects who had at least 2 living children were estimated by caliper measurements before and after vasectomy to determine whether any change in testicular volume occurs following vasectomy. The testicular volumes were calculated using the formula of Macomber and Sanders. The sizes of the testicles ranged from 3.1 ml in a patient who had had mumps at 5 years to 28.6 ml. The mean preoperative testicular volume was 17.9 +or- 4.9 ml. Comparison of the testicular volumes by the t-test before operation and at 5 days, 1 month, 6 months and 1 year postoperation showed no difference at the .05 level of significance.