The allergy diseases in our province have the characteristic of the early appearance of asthma and predominant monosensitization to the domestic dust is mites due to the climate condition. In this work we study the influence of allergic children. We selected 1,028 mothers who went to the hospital with their children for the 1st time. We divide them in 2 groups. One of 459 mothers of atopic children (MA) and another of 569 no atopic's (MC). All mothers were skin prick-tested (Phazet). The papular area was the mothers with aeroallergen sensitization were the 180 (17,5%) between (MA) 126 (274%) and (MC) 54 (95%). The 180 mothers were sensitized to: D. Pteronyssinus 66.3%, D. Farinae 65,5%., Lolium p 14.55%, Cats 11.6% (MA > MC), Artemisia V (6,25% and Cladosporium H (0,6%).