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Introduction: Migraine is prevalent and disabling disorder affecting more than 1 bilion people worldwide. Despite its increasing prevalence, socioeconomic impact and modern prophylactic treatment, migraine remains under-diagnosed and under-treated. Acording to the Consensus statement endorsed by the EHF and EAN, preventive treatment for migraine is recommended for patients adversely affected in ≥2 days per month despite optimized treatment. The aim of our study was to determine the proportion of undiagnosed and under-treated patients with prophylactic therapy among migraine sufferers in university students. Method: We screened 472 university students (356 women,age 22.0 ± 2.4 years) of Comenius University in Bratislava via an online questionnaire for any type of headache. Subsequently, we searched for migraine using diagnostic criteria according to ICHD-3. In positive patients we evaluated their average number of days with migraine per month and we asked if they have ever seen any specialist because of migraine. Results: 29.5% (n=139) of students fulfilled migraine criteria. 56.9% of (n=79) students have never been examined by specialist, 28.1% (n=39) were examined by neurologist, 5.8% (n=8) by GP, 9.4% by more than one specialist. We identified 85.6% (n=119) of students with ≥2 days of migraine per month, 25.2% with 2-7 days, 15.8% with 7-14 days, 38.1% with >14 days. In our cohort no patient was treated for migraine prophylaxis. Conclusion: We confirmed under-diagnosed migraine in more than half of students, less than 1/3 underwent neurological examination. We found more than 2/3 of students with ≥2 days with migraine per month. Despite fulfilling criteria, none of the students were using prophylactic treatment. Therefore screening of migraine patients by neurologists can improve accurate diagnosis and immediate initiation of migraine prophylaxis can lead to reduction of monthly migraine days, reduced need for acute medications and improve quality of their lives.