There are several reasons for the burning sensation in urine: First, the organism drinks little water resulting in a dry urethra, and there is slight irritation to the urethra during urination due to the concentration of urine. Second, the body may be suffering from urinary tract infection, because the urine contains red blood cells, white blood cells, epithelial cells, pathogens and other components, foreign bodies will cause irritation to the urethra, burning sensation during defecation, you can take oral broad-spectrum antibacterial agents, such as levofloxacin, cefdinir for relief. Third, it may be that the body has had unclean sexual contact, by chlamydia, mycoplasma, gonococcus and other infections resulting in a burning sensation in the urethra, stinging, itching symptoms in the urethra, increased purulent discharge from the urethra, you need to promptly seek medical attention and take medication, avoid sexual intercourse during the treatment of inflammation, otherwise it is easy to make the germs cross-infection.