Urology departments in England and Wales have reported seeing an increase in the number of 16- to 24-year-olds being admitted for bladder inflammation associated with ketamine use. This appears to coincide with an increase in ketamine use – with the number of adults and teens entering treatment for ketamine abuse last year jumping substantially compared to even just a few years previously. Ketamine abuse can have many effects on the bladder, causing frequent urination, nighttime urination,