Gingival disease is inflammatory and destructive disease of supporting tissues tooth in pregnant women Alum solution has been used as a medication treatment. The present study investigates the Plaque and bleeding index levels among 20 pregnant women with mean age (29.50±71.14) sharing in the study from different from clinical privet in Baghdad city, The present result display and show the relationship between pregnant women and the gingival disease. In pregnant women included in the study group, the results display decrease of Plaque and bleeding index with the increase of alum concentrations the best activity of alum show in 9 gm/100ml. Also, when increase the time of exposure the subjected criteria decrease. The present experiment included 20 pregnant women with age range between 22-39year sever from Plaque and bleeding among from different private in Baghdad city, the results display significant decrease Plaque and bleeding in the pregnant women with the time and days. Statistical analysis appears significant difference with the probability value (P≥0.01).