Previous few studies reported about the social media effect on mental health. However, the influence of social media usage on selective attention is still missing. The current study intends to understand the influence of social media usage on selective attention in an experimental setup. 221 participants performed a computer-based flanker task, in which they responded to the flankers (centrally positioned letter) that appeared in between five-letter strings. Participant's responses in the flanker task were recorded as the response time of compatible and incompatible conditions. Results revealed that the social media platforms, time spend on social media and gender were strongly influenced the selective attention. It was also found that female's flanker effect was larger as compared to males. Additionally, the log flanker effect (response time) revealed the same results. Based on the current study, gender differences can be explained as differences in their core cognitive abilities and from the study, it is recommended to limit the longer usage of social media.