Main Article Content
In the era of digital, smartphone is one of the most commonly communication device. The largest of smartphone users are held by students. Excessive use and repeatly position use of smartphone can cause health problems,one of them is de quervain’s syndrome. This study use analytical observasional with a cross sectional approach with total of respondents is 186 students class of nine. Most of respondents have a positive finkelstein test. The result of data was analyzed of chi square statistical test are significant between duration of smartphone use with incidence of de quervain’s syndrome showed p-value 0,008 and also significant results between the position of smartphone use with incidence of de quervain’s syndrome sshowed p-value 0,032. There is a relationship between the duration and position of smartphone usage on the incidence of de quervain’s syndrome at student of the Junior High School 5 Lahat.