[Treatment of hydrocele testis by injection of tetracycline solution]

Eleven cases of hydrocele testis were treated with injection of a 1% or 2% dedoxycycline hydrochloride or minocycline hydrochloride, and a cure was obtained in 9 cases (81.8%). Of these 9 cases, 7 cases were cured after one injection, and 2 cases after 2 injection. Both of the latter 2 cases in which physiological salt solution was used as the dissolving solution experienced scrotal pain immediately after injection. Among the cases in which 1% lidocaine was used as the dissolving solution only 1 injection (11.1%) was associated with slight pain out of 9 injections. This treating method is highly effective and little or no pain is experienced if lidocaine is used. In conclusion, we recommend this method as a treatment for hydrocele testis.