Causes of sterile pyuria: -Partially treated urinary tract infection (UTI) -Urethritis e.g. Chlamydia, TB and ureaplasma urealyticum -Renal tuberculosis -Renal stones -Appendicitis -Bladder or renal cell cancer -Adult polycystic kidney disease -Analgesic nephropathy In patient with 'Musty' odor to urine and sweat think of Phenylketonuria Causes of blue greenish urine: -Pseudomonas infection -Blue diaper syndrome and Hartnup disease are autosomal recessive disorders in which tryptophan builds up in the GI tract, causing bacteria to metabolize it to indole, leading to a buildup of indican in the urine. -Familial benign hypercalcemia, a rare inherited disorder, is sometimes called blue diaper syndrome because children with the disorder have blue urine. -And some drugs Drugs that may cause green urine are: Cimetidine Promethazine Amitriptyline Flutamide Indomethacin Methocarbamol Methylene blue Mitoxantrone Propofol Phenylbutazone Triamterene Drugs that may cause orang color urine: Idarubicin Ferrioxamine Oxamniquine Phenazopyridine Rifampicin Warfarin For more nephrology pearls please visit: https://bestmedicalpearls.blogspot.com/2020/05/nephrology-pearls_8.html