The aim of this article is to present the safety and efficacy of intradetrusor botulinum toxin injections in the treatment of non-neurogenic overactive bladder in pediatric patients. The electronic database MEDLINE (1966-2009) was searched including the following entries: non-neurogenic overactive bladder and botulinum overactive bladder. Data on the investigation topic are scarce. Most of the papers concern neurogenic overactive bladder in adults, with only a few dealing with children with neurological disturbances. Therefore, the following paper presents a case of botulin toxin treatment in girl with overactive bladder. The patient did not tolerate the standard anticholinergic therapy and did not present neurollogical disturbances. Successful outcome allows us to state that intradetrusor botulinum toxin type A injection is a promising new treatment method in the refractory cases of non-neurogenic pediatric overactive bladder.