Using saline solution including exuded extract from uterine curettings, hCG tests were performed in 63 women in whom there was a suspicion of ectopic pregnancy, and their results correlated highly with the microscopic existence of chorionic villi and trophoblasts. Ectopic pregnancy can be mostly excluded when the test is positive, and either ectopic pregnancy or complete abortion is probable when it is negative. Using saline solution including exuded extract from uterine curettings, hCG tests were performed in 63 women in whom there was a suspicion of ectopic pregnancy, and their results correlated highly with the microscopic existence of chorionic villi and trophoblasts. Ectopic pregnancy can be mostly excluded when the test is positive, and either ectopic pregnancy or complete abortion is probable when it is negative.