A comparison of the recurrence rate of atopic dermatitis over the last 3 years in subgroups of patients with a polymorphic heterozygous genotype (G/A∗) and a homozygous “protective” (GG) TLR2 receptor demonstrated that clinical episodes of dermatitis recurrence were significantly more often recorded (as twice as often, p = 0.03) in a subgroup of patients with atopic dermatitis and a mutant allele of the TLR2 gene. This evidence concerns the gene TLR2 and dermatitis.