A screening test was applied to 136 primigravidae, between six months and one year following therapeutic abortion, to check tubal patency, using pertubation, according to Semm. --The methodical errors involved were compared and checked by laparoscopy with chromopertubation. --Reference is made to effects of age at the time of abortion, week of pregnancy, and technique of abortion. --Complete tubal occlusion, as a secondary cause of secondary sterility in the wake of therapeutic abortion, was recorded from 2.96 per cent of the above primigravidae. The rate of tubal infertility (tubal abortion or extra-uterine gravidity) was not significantly increased beyond the figures of other patients (0.96 per cent of all primigravidae, following therapeutic abortion). --Derived from the above results are recommendations for techniques of abortion which should be used on primigravidae.