Painful urination and burning may be caused by urinary tract infection, urinary tract stones, non-gonococcal urethritis and other reasons. 1. Urinary tract infection: after urinary tract infection, due to the stimulation of the urinary tract by inflammatory substances, it will lead to congestion, edema, and even erosion of the mucosa of the urinary tract. It will make the patient appear the symptoms of urinary fever and urinary pain, and in severe cases, fever and lumbago can occur. 2. urinary tract stones: due to the presence of urinary tract stones, stones in the process of movement is easy to scratch the urinary tract, resulting in urinary tract mucosa rupture oozing. When the patient for in the urination will appear urinary pain, urine burning, may also be accompanied by urinary diversion, urinary effort, urethral blood and other manifestations. 3. Non-gonococcal urethritis: patients may be due to unclean sexual behavior, resulting in infection with mycoplasma, chlamydia and other pathogenic bacteria, patients will not only have painful urinary burning, but also urinary incontinence, urethral secretion increase and other symptoms. There are many causes of urinary pain and burning, patients should pay attention to, timely to the hospital for diagnosis and treatment.