[An epidemiological study on erythromelalgia].

Erythromelalgia occurred in middle schools of many counties in Hubei province from February to March. A survey in 2 senior middle schools revealed that the total incidence of the disease was 13.1% (248/1892) the incidence of female was 30.7% (138/449) and that of male 7.9 (110/1443). The average course of the illness was 6.56 +/- 4.3 days. The study of meteorologic phenomenon, biological agents, nutrient etc shows that the factors of cold and humidity might play a leading role.