The urethra is a little red, may belong to the normal phenomenon, may also be related to the urinary system infection. 1. Normal phenomenon: the skin and mucous membrane of the urethra is generally pink, if there is no accompanying redness, swelling, pain and other phenomena, can be considered to be a normal skin and mucous membrane color. If the patient is male, if the foreskin is too long, will be the glans wrapped, the urethra presents the reddish color is also normal. 2. urinary tract infection: if the urethral opening is red, the patient is also accompanied by obvious symptoms of discomfort, such as urethral opening is red, swollen, painful, accompanied by frequent urination, urinary urgency, urinary tingling and other symptoms, can be considered as urinary tract infection; women may be serious vaginal stimulation, abnormal secretions. If the urethral opening is slightly red accompanied by obvious discomfort such as pain, it is recommended that the patient go to the regular hospital in time, follow the doctor’s instructions for treatment, and strive for early recovery.