Obsessive-compulsive disorder (OCD) is characterised by obsessive thoughts and compulsive actions. These obsessive-compulsive symptoms (OCS) are subclinical manifestations that do not meet the full diagnostic criteria for OCD and are associated with anxiety, depression and lower quality of life (QoL). Medical students are vulnerable to developing OCS due to stress in medical school. This study assessed OCS prevalence and its association with the mental well-being and QoL of medical students in Egypt.

A nationwide cross-sectional study was conducted across 15 Egyptian medical schools. Using convenience sampling, 1850 students participated by completing a self-administered questionnaire that used validated scales. We assessed OCS with the Obsessive-Compulsive Inventory-Revised (OCI-R) using a screening cut-off of ≥21, QoL with the Quality-of-Life Enjoyment and Satisfaction Questionnaire (Q-LES-QSF), and anxiety and depression with the 4-item Patient Health Questionnaire (PHQ-4). Descriptive statistics and logistic regression were employed.

Clinically significant OCS prevalence among medical students was 51.1%. Significant predictors for OCS included being female (adjusted OR (AOR)=1.25), attending a private university (AOR=1.64), and having personal (AOR=2.05) or combined personal and family history of mental illness (AOR=2.69). OCS presence was associated with a lower QoL score (Q-LES-QSF: 41.00 vs 43.97) and higher psychological distress score (PHQ-4: 5.93 vs 3.57) compared with students without OCS (p

OCS are prevalent among Egyptian medical students, especially females, private university attendees and those with a personal or family history of mental illness. These symptoms are associated with higher psychological distress and a lower QoL. As OCS were identified using a screening cut-off, and given the cross-sectional design, findings should be interpreted cautiously, warranting further longitudinal investigation. Universities should consider implementing mental health support, screening and awareness programmes to address these issues.