<prompt> Proteus infection leads toStruvite stonesUric acid stonesPigment stonesCalciumCholestrol stones  <response>: A Struvite stones Struvite stones are infectious stones composed of magnesium ammonium phosphate. Struvite stones are common stones seen in SCI population, and they are caused by ureage producing bacteria. Most common are Proteins, Psuedomonas, klebsiella, peosidentia, E.coli, Staphylococcus epidermidis, and ureaplasma urease catalyses break down of urea and water to ammonium and bicarbonate. The bicarbonate produces alkaline urine having a pH level greater than 7.2. Alkaline urine facilitates the precipitation and crystailzation of magnesium ammonium phosphate , calcium carbonate, calcium phosphate. 