与北美洲相比,结节性红斑于欧洲多发(虽然确切发病率尚不可知)。该疾病可发于任何年龄,但是发病高峰期在 20~30 岁间。[2]Requena L, Requena C. Erythema nodosum (review). Dermatol Online J. 2002;8:4.http://www.ncbi.nlm.nih.gov/pubmed/12165214?tool=bestpractice.com女性发病率较男性高 3~6 倍。[2]Requena L, Requena C. Erythema nodosum (review). Dermatol Online J. 2002;8:4.http://www.ncbi.nlm.nih.gov/pubmed/12165214?tool=bestpractice.com常见于育龄期女性并与妊娠和哺乳相关。基于潜在疾病的患病率不同,本病在各地的发病率有所不同。[1]Bondi EE, Margolis DJ, Lazarus ZS. Panniculitis. In: Freedberg I, Eisen A, Wolff K, et al, eds. Fitzpatrick's dermatology in general medicine. 5th ed. New York, NY: McGraw-Hill; 1999: 1284-1286.