Burning pain in urine, possible causes: First, suffering from infection of the urinary tract, infection will appear after the mucous membrane of the urinary tract is congested, edema, erosion, etc., so there will be a burning and stinging sensation in the urethra when urinating. It may also be accompanied by symptoms such as frequent urination, urgent urination, painful urination, or with increased secretion, and in severe cases, it may even be accompanied by back pain and fever. Further routine urine examination and urine culture examination are needed to further confirm the diagnosis. Second, suffering from non-gonococcal urethritis can appear burning and stinging in the urine, it is due to the infection of mycoplasma and chlamydia through unclean sexual contact. This is because the infection of mycoplasma and chlamydia through unclean sexual contact. The burning and stinging is accompanied by an increase in urethral discharge, which is yellow or white and sticky. It may also be accompanied by a feeling of incomplete urination or a discharge that is dry and crusty and gumming up the urethra, etc. The diagnosis needs to be confirmed by relevant pathogenetic tests. Thirdly, when there are stones in the urinary tract, they can cause burning and stinging pain when urinating and can be accompanied by abnormal urination, such as bifurcation of urination or straining to urinate. Some patients may have symptoms of blood dripping from the urethra, and further urethroscopy is needed to confirm the diagnosis.