[Relapse into pregnancy in adolescents from Teresina, PI, Brazil].

Pregnancy in adolescence is a public health problem, and relapse rates make it even more serious. Out of 1,1 million parturient adolescents, 25% have a child already. We aimed to analyze the social economic cultural obstetric factors of relapse into pregnancy in adolescence in Teresina, PI, Brazil through interelational retrospective study.