We described a case of a young man who, after recovery from herpes simplex encephalitis with lesions in the frontal and insular cortices, developed urinary incontinence. An urodynamics revealed decreased sensation, inability to initiate a volitional detrusor contraction and terminal detrusor overactivity (DO) without residual. His symptoms were initially treated with clean, intermittent self-catheterization (CIC) and over time his bladder disorder improved. This might be one form of classical 'Andrew and Nathan type' frontal urodynamic abnormality.