Sex differences in the frequency of physician visits, participation in cancer screening tests, number of drugs consumed, intake of antihypertensive drugs, and participation in hypertension screening have been investigated with data from the Munich Blood Pressure Study I and II (MBS 1981 and 1982). The study population was a random sample of the adult population of Munich (30-69yrs.). 2216 men and women participated in MBS I (response 69.3%). The results from descriptive analyses and multivariate logistic regression showed significant relationships between sex and the various types of medical care utilization described above, with the exception of participation in hypertension screening, that is participation in the Munich Blood Pressure Study. Also, after controlling for age. marital status, education, occupational position, subjective physical well-being, number of chronic diseases, women went more often to the doctors and consumed more drugs than men. The sex differences were the largest in the participation of cancer screening tests (odds ratio 7.7) and the smallest in the frequency of physician visits (odds ratio 1.8) and participation in hypertension screening (not significant). Additionally, the sex differences in medical care utilization decreased with age.