Other complaints may include mood changes, vaginal and bladder problems, changes in sexual function, bone loss and an increase in bad cholesterol.

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The MRC scientists say in humans this would be vital for spinal injury patients who had lost sexual function and bowel and bladder control.

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"It has been hyped by the instrument makers, " says Johns Hopkins University urologist Patrick Walsh, renowned for inventing a nerve-sparing prostatectomy procedure that preserves sexual function.

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This can include second cancers, coronary artery disease, heart failure, lung problems and endocrine disorders (growth function and slow or delayed sexual development).

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