COVID-19 originated in Wuhan, China, in December 2019 (
1), and the first case was diagnosed in Iran on February 19. Pathogenicity, rate of spread, and high mortality rate from COVID-19 have led the World Health Organization (WHO) to declare it as a public health emergency (
2). Then, on March 11, 2020, the WHO announced it as a pandemic (
3). COVID-19 affected all important economic, political and social aspects of countries, and many people around the world were affected by the psychological problems triggered by it. Students were also affected by psychological problems during the COVID-19 pandemic due to the closure of universities, inability to socialize with friends, restrictions on traveling, and self-quarantie due to fear of being infected with the disease. Ghazawy et al. found that more than half of the Egyptian students experienced symptoms of depression, anxiety, and stress during the COVID-19 pandemic (
4). In addition, medical students experienced the unknown nature and high prevalence of the COVID-19 (
1) because they were engaged in the frontline care in some countries, like Iran, during the epidemic (
5). Several studies reported that the rates of anxiety caused by the COVID-19 in medical students of China, UAE, and Iran were 17.1% (
6), 50% (
7), and 38.1% (
8), respectively.
COVID-19-induced anxiety can be reduced by some factors, one of which is the resilience, that has been found to play an important role in controlling and preventing anxiety in medical students during the COVID-19 pandemic (
8,
9). If medical students' anxiety is not controlled, it can negatively affect the quality of patient care and lead to poor effectiveness in treating patients (
10). Resilience is the ability to adapt successfully in the face of stress and adversity, maintain proper functioning, and prevent the return of essential stressors in life (
11). Resilience, in other words, is the ability to cope with life changes and stress, which is not only useful for surviving life's challenges but also provides an opportunity to develop people's learning and growth in difficult situations (
12).
In addition to resilience, sometimes difficult and stressful situations such as COVID-19 provide a good context for people to progress and achieve higher levels of psychological function, as well as facilitate the occurrence of positive psychological changes called posttraumatic growth. Posttraumatic growth is achieved in the face of hardship or traumatic events and adaptation to anxiety (
13,
14). A review of the literature has shown that most studies have addressed the negative consequences of the COVID-19 outbreak, including anxiety, depression, and posttraumatic stress disorder in medical students and insufficient information is available about the positive consequences of the COVID-19 pandemic such as resilience and posttraumatic growth in medical students. Medical students, as an important part of the healthcare team in hospitals, play a crusial role in maintaining and promoting community health and are now providing medical care to patients with COVID-19. In addition, their mental health affects the quality and effectiveness of patient treatment, care, and safety (
15). To our experience, medical students faced a number of psychological challenges in treating patients with COVID-19 which sometimes manifested themselves as an inability to stay in medicine. Our study results reflected the mental health of medical students during the COVID-19 pandemic. In addition, our results provided a theoretical basis to perform psychological interventions for medical students.