Between January 1st and May 31 1989, there were 31 cases of perihepatic adhesions (Fitz-Hugh-Curtis syndrome) about 90 ectopic pregnancies (rate: 34 p. cent). The Chlamydia's serology is positive at 1/64 level in 97 p. cent of cases and at 1/256 level in 72 p. cent. Only three cases are not allied with pelvic disease. Peri-splenitis accompanies severe hepatitis (3 cases) and no perinephritis was observed in this study. The authors emphasize the wish to explore perihepatic space in all pelvic surgery. In the department of Gynecology and Obstetrics at the University Hospital of Libreville, increased the rate of ectopic pregnancy (1 for 44 deliveries), this coincides with the increased prevalence to Chlamydia trachomatis infection (81 p. cent ectopic pregnancies and 63 p. cent deliveries). This situation creates a new and greater problem of health in sub-Saharan Africa.