Redness of the urethra often indicates the possibility of urethritis or glans penis. Most patients with redness in the urethra are often accompanied by itching or painful urination, and in people with more severe symptoms, there is also urethral discharge. The redness of the urethra is actually a manifestation of the inflammatory response, which suggests the need for prompt medical attention and a clear diagnosis. Male patients may experience itching of the glans, painful urination or burning sensation during urination. Non-gonococcal urethritis can also have similar manifestations. It is highly prevalent in people who do not practice hygiene or are sexually active. It is recommended that routine urination, urine culture, and urinary ultrasound be performed to assist in the diagnosis of urethral inflammation, and if accompanied by glansitis of the foreskin, both internal and external treatment should be actively pursued to clarify the pathogenic infection as the primary basis for treatment. Female patients may also be accompanied by increased leucorrhea and increased urethral discharge. In addition to treatment with symptomatic antibiotics, it is also recommended to drink a lot of water so that the urethra gets enough urine flushing to ensure that the treatment is adequate and full course. In summary, the redness of the urethra is actually a manifestation of urethral inflammation or inflammation of the external genitalia, and it is recommended that timely hospital visits be made to clarify the pathogenic bacterial infection and timely symptomatic treatment. Long time without cure, often leads to retrograde infection of pathogenic bacteria, resulting in upper urinary tract and other infections, the treatment will be more difficult.