RÉSUMÉ
To find out the frequency of premenstrual syndrome [PMS] in young college girls and to describe the severity of emotional, physical and behavioural symptoms. An observational study was conducted at the Khyber Medical College, Peshawar by convenient sampling on 384 young girls. Data was collected over two cycles by filling a 29 items shortened premenstrual assessment form based on Moos Menstrual Distress Questionnaire after taking consent from medical students. Results were given according to both criteria i.e. ICD-10 and DSM-IV. The frequency of premenstrual syndrome was 53% according to ICD-10 criteria, among which 42% was mild, 18.2% moderate and 31.7% severe. A total of 64 girls [18.2%] met the DSM-IV criteria for severe PMS or Premenstrual Dysphoric disorder [PMDD]. The order of frequency of symptoms occurring in PMS was general body discomfort, anxiety, backache, fatigue and depression. Most frequently reported symptoms in PMDD group were anger, anxiety, stress, depression, fatigue and general body discomfort. Premenstrual syndrome is a common problem in young girls. Doctors should adopt comprehensive measures to reduce its incidence and improve the quality of life in the affected