11 yrs old adolescent girl child has been referred in view of gross hematuria on & off for 1 yr, evaluated, had nephritic range proteinuria. Her renal function was stable. Suspected diagnosis was IgA Nephropathy. Surprisingly her renal biopsy light microscopy and immunoflourescent study were normal. Electron microscopy revealed Alport syndrome. How frequently we encounter Alport in females?