Morbidity and use of medical care were studied to obtain adequate health indicators of community health in a remote island (Kudaka Jima) in Okinawa Prefecture. It is a typical remote island with its area of 1.5 square kilometers. Population of the island has been continuously decreasing since some 16 years ago, and in the present it is about 400 and is mainly composed of children and old people. So far, the islanders came from and moved to 18 districts in the main island of Okinawa. Among these districts M District in Naha City and Y Town are prominent in terms of number of people who came in and moved out. When people of this island get sick, they usually visit their relatives who reside in the main island and go to hospitals in the same district. A home-visit survey was conducted and it revealed that the main purpose of the people who visited their relatives in Y Town was to get medical care in an early stage and 80 percent of them came back to their own island in the same day. On the contrary, in cases of the islanders to Naha City, they had compartively severe diseases and stayed there one to two days in 61 percent and five days or more in 30 percent.
