The research aims to identify the post traumatic stress disorders in females who have been subjected to stressful situations (drawning incident they have suffered collectively) when performing the trip to Lake Zarzar. The research aims to study the differences between females who were on the boat and who were from survivors and those who were on the trip and had witnessed the accident without being on board. A scale of PTSD was used. In addition, the research attempts to study the differences between females who were on flight and their colleagues who were in the school who did not go. The research attempts to study the differences between the three research samples to find out the degree of the emergence of feelings of fear, and the degree of the emergence of feelings of guilt. The social, and professional functions. It determines the percentage of the degree of symptoms of disorders of traumatic stress in females who have been to the drawning incident (light - medium - high). A scale pressure disturbances following traumatic stress, which had been prepared before, (Sheikh, 2006) was used.\" It was built based on the tests, DSM – IV. The research sample consisted of \"299\" student of the school named Goliath students for basic education \"second episode\" City of Damascus. The ninth grade aged (14 - 15 years), has been subjected to accident (boat) and engaged in the flight school on 19/3/2009 m to Lake Zarzar. The sample was divided into a sample of female students who were on the boat during the sinking, who were from the survivors and their number was (23) students, and a sample of female students who were on flight and witnessed the incident, the sinking of their friends and their number was (174 students). Another sample was in the school who did not go for the trip, and their number was (102). And they were affected by the death of nine of their friends who were on the boat during the sinking. Among the most important findings were: The lack of statistically significant differences on a scale of PTSD among females who were on the boat (from survivors), the females who were on the flight and had witnessed the incident and were not on the boat. A statistically significant difference in the intensity of the emergence of feelings of fear among the females who were on the flight and the females who did not attend, although the degree of fear was higher in the first group. A statistically significant difference in the decline to perform social functions among female who were on flight and the females who did not attend The degree of decline to perform social functions was higher for the first group.