Menstrual-Related Symptoms, Early Menarche, and Their Impact on Sport Participation in Adolescent Floorball Players: A Cross-Sectional Study in Sweden

Purpose: This study aimed to examine the impact of menstrual symptoms on sport participation and management strategies among adolescent girls playing floorball in Sweden. Methods: A cross-sectional study was conducted among floorball players aged 12–18 years (n = 545). Logistic regression was used to assess factors associated with menstrual-related symptoms and their impact on participation and absence from training sessions or matches. Results: Menstrual pain (89.6%) and mood swings (81.9%) were the most commonly reported symptoms. Symptoms such as menstrual pain, heavy menstrual bleeding, headache, fatigue, dizziness, and concentration difficulties were more prevalent among participants with early menarche (≤11 years) than those with later menarche. Overall, about 62.2% perceived that their menstrual symptoms affected their training and matches. Early menarche (≤11 years) was associated with nearly three times higher odds of refraining from training sessions or matches. Despite substantial impact, healthcare-seeking and communication with coaches were limited. Conclusions: Given the high prevalence of menstrual symptoms and their impact on sport participation and experiences, menstrual health should be recognised as a core component of athlete well-being in youth sport. Efforts are needed to improve menstrual health awareness, early identification of girls with high symptom burden, and supportive sport environments to promote gender equality in youth sport.