The aim of the study was to analyze quality of investigation and treatment in the specialized services – dermatological and sexually transmissible diseases outpatient department of the II Kaunas Clinical hospital and private health care institution “Medidermas”. Methods. Study population – patients with dermatological and sexually transmissible diseases. Randomly selected patients were interviewed in 2004 September-October. Totally 157 patients from state and 62 from private institution were investigated. MS Office Exel and EpiInfo 6.0 packages were used in the statistical analysis. Results. Mean age of the investigated was 42.5±1.1 yrs. One quarter of the investigated chose health care institution, recommended by familiar or friend, only 24% applied to specialized departments with referrals. The majority of respondents (85.5%) of the private institution “Medidermas” were accepted after few days of registration, 38.2% (p<0.001) of the dermatological and sexually transmissible diseases outpatient department of the II Kaunas Clinical hospital were accepted after one or two weeks. 45.2% of the investigated in the private service were registered in the interval of 10 minutes, 43.5% - 15 minutes. In the state institution only 17.8% (p 0.001) were registered during 10 minutes and half – 15 minutes. The respondents of “Medidermas” had a longer waiting time before acceptance to a medical doctor as compared to the state health care service (in 10 minutes 41.9% and 17.3%, p<0.001... [to full text]