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Day to day, Louise Olson offers treatment and reconstructive surgery to people with urinary issues.

Until recently, her patients tended to be older.

But in the last year there has been a long queue of young people waiting for her help all with one thing in common - ketamine addiction.

“The majority have been using it since their mid teens,” she says.

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“And they all say if they had known the effects on the bladder, they never would have used it. But hindsight is 50/50.” View 6 Images

There is a growing trend of very young teenagers experimenting with ketamine here in Greater Manchester, as the Manchester Evening News recently revealed.

One substance misus

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