[Ketamine-induced urinary symptoms].

Ketamine is gaining popularity among Danish drug users. We present the first three reports of ketamine-induced urinary symptoms in Denmark. The patients were 22-27 years old and were all referred to urological departments due to microscopic or macroscopic haematuria. In addition, all three patients reported pain from the penis and the gut, respectively. No specific pathology was found and all patients admitted to ketamine abuse. The cases illustrate that Danish physicians must be aware of potential side effects to ketamine abuse.