The burning sensation in the urethra is considered to be caused by urethritis, cystitis and prostatitis. 1. Urethritis: the disease is mainly caused by pathogenic microbial infections, the onset of pathogens and pathogens increased in number, increased virulence, autoimmune function decline and other factors related to the patient will have a burning sensation in the urethra, usually manifested in the urethra itch, pain in the urine and other symptoms. 2. Cystitis: If affected by tuberculosis bacillus, mycoplasma, chlamydia and other factors, can be transmitted through sexual contact and other ways, resulting in patients with burning sensation in the urethra, mainly manifested as frequent urination, urinary urgency, lower abdominal pain and other symptoms. 3. Prostatitis: The burning sensation in the urethra of patients may be caused by prostatitis, which is mainly related to the infection of the causative agent, accompanied by frequent urination, urinary urgency, urinary pain and other symptoms. It is recommended that the patient go to the hospital in time, in the doctor’s diagnosis, according to the patient’s condition, targeted treatment, life should pay attention to hygiene, so as not to cause infection.