In order to evaluate the accurate diagnosis of scabies through examinations of all requred conditions, the author conducted an observation on 769 cases of scabies at the Department of Dermatology, Kyungpook University Hospital from January, 1962 to Octover, 1973.
In 1962 the frequency of the disease appeared to be low, but it dramatically rose to 20 or 30 times between 1963 and 1966, again showing an increasing tendency from 1971. The ratio of frequency between male and female was 4.2 : 1. Seasonal occurrence of scabies was. found to be highest in winter.
Infectious rate in the family was 83.3% and incubation period was estimated from 15 days to 2 months.
Acarus scabiei or its ova were found in 46.5% of all cases examined and in patients over 16 years of age. Acarus scabiei or ova were chiefly found in vesicles of the finger web but the ova were also found in the subungual fold of the finger, which is an important site of examination.
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