Covid-19 pandemic has been restricting human social relationship physically, in order to control the number of Covid-19 virus transmissions. The restriction might trigger loneliness and have an impact on emotional problems. Therefore, the study aims to explain the relationship between loneliness and self-harming during the Covid-19 pandemic. By using purposive sampling, 146 students from Jakarta was participating on this research. UCLA Version 3 was used to measure loneliness and Self-Ham Behavior Questionnaire (SHBQ) was used to measure self-harming behavior. The results show that there is weak positive relationship between these variables (sig = 0.003 < 0.000, r = 0.243).

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