Between 1957-1983

25 cases of multiple myeloma were admitted.and its clinical date and causes of misdiagnoses were analysed.Of twenty five cases

sixteen cases(64%)were misdiagnosed

including aplastic anemia(2 cases)

arthralgia(4 cases)

chronic nephritis(2 cases)

various infections (4 cases)

tumor(3 cases)and nyperparathyroditis(1 case).So that

when clinical symptoms with anemia

albuminuria

arthralgia

infections resisted to treat etc.are present in middle-aged and eldly patients

and these syptoms cannot be attributed to other diseases.The possibility of multiple myeloma should be considered and bone marrow examinations

serum protein analysis sho- uld be given.