Taking into account modern data about swift increase of harmful habits in children’s population, frequency of tobacco smoking in school age children with acute obstructive bronchitis and peculiarities of diseases course were analyzed. Among teenagers 33.3% of children are smoking. The direct correlation of tobacco smoking with acute obstructive bronchitis course was formed (prolonged — on the level of 0.546), with rheological violations of the sputum — 0.363. This allow forecast unfavorable acute obstructive bronchitis course at smoking children.
