Mean serum IL‐31 level in dogs with SRMA was 260.7 pg/mL (n = 18, 10.78–1050 pg/mL) and therefore mildly higher compared with the mean IL‐31 level of dogs with atopic dermatitis of 228.3 pg/mL (n = 3, 62.97–437.9 pg/mL) and markedly higher than in healthy control dogs (80.7 pg/mL; n = 10, 42.67–137.2 pg/mL). This evidence concerns the gene IL31 and atopic eczema.