Objective: Determine the level of knowledge and frequency of use of sunscreen in g medical students from a Peruvian university. Materials and methods: Cross-sectional analytical research in 302 students, of both genders and different study cycles. A virtual survey was applied. Results: High level of knowledge 56%; increased with the study cycle p=0,006. Use of sunscreen was 28,8%, higher in women with 34,5%, it was significantly associated with the level of knowledge p=0,001, but not with the study cycle p=0,065. Mixed skin type (55%) and skin phototype III (58,3%) prevailed. The reason  not to use sunscreen was the oily consistency. The question that had more correct  answer was ¿Is solar radiation the main cause of skin cancer?.The use of sunscreen was significantly related to phototype p= 0,005. Conclusions: In the medical students of a Peruvian university, the level of kno...

Introduction: Polycystic ovary syndrome (PCOS) and premenstrual syndrome (PMS) are prevalent. Objective: to determine the frequency of the symptoms of polycystic ovary syndrome and premenstrual syndrome and its relationship with stress in medical students. Material and methods: Cross-sectional analytical study. The study population was 322 medical students from the 1st to the 12th cycle, chosen by convenience from a private university in Trujillo. Through a google form, the "SPM" questionnaire, "the SISCO inventory of academic stress", and "the questionnaire on polycystic ovary" were applied; prior informed knowledge, it had the approval of the Bioethics Committee of the university. Results: The SOP presented a high probability of 5.28%, medium of 46.58% and low of 48.13%.The frequency of PMS in the levels, mild, moderate and high were 47.52%, 25.47% and 4 0.04% respectively. The levels ...