Urine Routine Microscopy and Culture Sensitivity (MC& S) are two key urine tests: Routine Microscopy gives a quick look at urine's physical/chemical makeup (color, pH, cells, protein) for general health/infection signs, while a Culture & Sensitivity (C& S) test specifically grows any bacteria or fungi present to identify the exact germ causing a Urinary Tract Infection (UTI) and determines which antibiotics will effectively kill it (sensitivity). Microscopy offers clues, but culture & sensitivity pinpoints the cause and best treatment for bacterial infections, often taking 24-72 hours for results.