The possible causes of burning and stinging in the urinary tract: 1. Acute urethritis or cystitis, can appear stinging and burning in the urethra when urinating, because the acute inflammatory period of local mucosal congestion, edema, or accompanied by local mucosal erosion and other changes. The Urethra can be further diagnosed by routine urethral examination and urine culture. 2, the presence of urinary stones, stones lead to local mucosal damage can appear burning and stinging sensation when urinating, accompanied by urinary effort or urinary bifurcation, and in serious cases, even the inability to urinate, urethroscopy is needed to further confirm the diagnosis. 3, if you have had unclean sexual contact, gonorrhea or non-gonococcal urethritis, you can have burning and stinging pain in the urine or with increased secretions. It is necessary to carry out relevant pathogenic tests, such as gonococcal culture and mycoplasma culture, to confirm the diagnosis.