Statistical Study of Dermatosis During 5 Years: 1973~1977

18,779 patients who visited to the Department of Dermatology in Ewha Womans University Hospital from Jan. 1973 to Dec. 1977 were analyzed in order to pursue the tendency of the skin diseases on these day. The results are as following: 1. The ten commonest dermatoses are: Contact dermatitis 11.8%, Acne vulgaris 10.7%, Melasma 8.8%, Fungal infection 7.9%, Atopic dermatitis 7.4%, Urticaria 6.3%, Pyoderma 5.4%, Scabies 4.0%, Psoriasis 3.1%, Molluscum contagiosum 2.1%. 2. Acne vulgaris, Melasma revealed tendency to increase during 5 years. The frequency of occurrence of contact dermatitis, atopic dermatitis, urticaria, pyoderma reduced gradually. 3. Most frequent diseases on March is atopic dermatitis. Melasma and fungal infection revealed peak frequency on July. Peak frequency on August are pyoderma and fungal infection. Molluscum contagiosum revealed peak frequency on June. 4. Most frequent age group of melasma is 30~39 years. Most frequent age group of Acne vulgaris is 20~29 years. Peak frequency of atopic dermatitis, Molluscum contagiosum and pyoderma was seen in 0~9 years of age. 5. Most frequent dermatoses in female are melasma, acne vulgaris, and contact dermatitis. Scabies revealed more frequent in male. Sex difference are; Male: Female=1:1.9