Hashish use among high school students is one of the serious social problems in the study locale as well as all over in Khyber Pakhtunkhwa. It has destroyed and destroying individuals everywhere in the world. The roots of Hashish use among high school students in the area are pedalling day by day. This study basically aims at discovering the causes which lead to Hashish use and its effects on their lives among high school students of the study locale. This study is qualitative in nature and snowball sampling technique was used. The study is conducted in the public schools of two tehsils (Khar and Utman Khel) in the tribal district Bajaur. The tool of data collection was interview guide. In addition observation method also used to substantiate the interview data. The collected data was analysed through thematic data analysis technique. The findings of the study show that the basic cause of Hashish use among high school students is peer pressure, community environment favourable towards Hashish use, Curiosity, negligence of parents, the stress in the domestic environment, Failure in Love, lack of monitoring in schools, and excessive availability of Hashish in the area. Parents and family have the power to shape the attitude and behaviour of their children's. It is, therefore, the responsibility of the parents to take care of their children around the clock, and the district administration may take some steps to control the availability of Hashish in the district.
Key words: Hashish, High school students, Hashish use.