The slides of testicular biopsy were reviewed of 29 cases of infertile men admitted to the Department of Urology, Keimyung University School of Medicine during the period from 1974 through 1982. Among the 29 cases, seminovesiculograms were made of 25 cases, The results obtained were as follows:
1. In testicular biopsy findings, 10 cases (34.5%) of hypospermatogenesis, 7 cases (24.1%) of germ cell aplasia, 6 cases (20.7%) of normal spermatogenesis, 2 cases of maturation arrest, 2 cases of tubular hyalinization, 1 case of generalized fibrosis and 1 case of incomplete spermatocytic arrest were observed.
2. In aspect of past history, 3 cases of epididymal tuberculosis showed normal spermatogenesis. 1 case of epididymal tuberculosis, scrotal trauma and retrograde ejaculation showed hypospermatogenesis. and 1 case of irradiation and heat showed maturation arrest.
3. 69% of all the cases of male infertility in the present series belonged to the testicular category and 31% were posttesticular causes, but pretesticular causes were excluded in this report.
4. Among the 5 cases who showed obstruction on seminovesiculograms, 3 cases of normal spermatogenesis and 2 cases hypospermatogenesis were observed. In the past history 3 cases had epididymal tuberculosis and 2 cases had either scrotal trauma or scrotal abscess.
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