This study was conducted to investigate the changes diseases of physical therapy patient. Through the analysis, of total 2,902 cases in one university hospital and one general hospital in Taegu, of which 1,619 cases for 1989 and 1,283 cases for 1981. The physical records were analyzed in terms of sex, age, pattern in PT diseases, fee, and medical department of PT. The international classification of Diseases, 9th revision was used fer the study. Major results are as follows : 1. The ratio of male me female nae 1.51 to 1 in 1989, 1.53 to 1 in 1991. The proportion of the elderly over 60 was $15.6\%$ in 1989, $22.0\%$ in 1989. And the age groups of 50-59 years ranked the first an years. 2. As to the PT patients of medical department, Orthopaedics$(50.3\%)$, Neurosurgery$(28.1\%)$. Neuromedicine$(8.0\%)$. Plastic surgery$(4.4\%)$, and Dentry$(3.2\%)$ in that order in 1989. On the other hand, Orthopaedics$(51.2\%)$, Neurosurgery$(22.1\%)$, Neuromedicine$(9.6\%)$, Plastic surgery$(6.5\%)$, and Internal medicine$(6.5\%)$ in that order in 1991. 3. No significant difference was observed by season of PT patients, but winter (December, January and February) ranked the first all years. 4. No significant difference was observed changes in diseases as for the 56 international classification of diseases of PT patients, Diseases of the musculoskeletal system and connective tissue occupied the largest proportion all years. Fractures increased from $21.4\%$ in 1989, $24.5\%$ in 1991. On the other hand, Diseases of the nervous system remarkably increased from $8.9\%$ in 1989, $19.7\%$ in 1991.