The follow-up of premature rupture of membranes requires an hospitalization. The aim of this work was to evaluate the interest of the Prom-Test in the action to be taken in the case of a suspicion of premature rupture of membranes, a negative result allowing to not hospitalize the patient. 105 tests have been carried out producing 73 negative results, 23 positive and 9 doubtful. The childbirth, started or not, occurred much more quickly when the test is positive. Only 13 of the 73 negative tests resulted in a hospitalization including 11 for beginning of delivery. A correct use of the test can prevent unnecessary days of hospitalization.