The incidence of skin and subcutaneous tissue diseases among two cohorts of cadets of the military educational institution: from the local population and visitors studying under the influence of the Baltic Sea was analyzed. It was found that the most common nosologies were pyoderma, skin abscess, furuncle and carbuncle. The incidence of skin and subcutaneous tissue diseases in visiting cadets was higher and amounted to 215.6 ± 7.5 %, in individuals from the local population 119.0 ± 16.3 % (p = 0.001). Visitors also showed a longer (in years) period of registration of diseases, a less significant decrease in indicators over the years relative to the data on the incidence of persons from the local population. The higher morbidity rate among cadets of 1–3 years of training may be due to both adaptation to the conditions of training and the conditions of organized accommodation, and the differences in morbidity in the cohorts of local and newcomers can be explained by the need to acclimatize the latter to the weather conditions of the Baltic States.