If there is light blood after urinating and wiping with paper, if it is a female, the first thing should be clarified whether it is vaginal bleeding or blood produced from the urethra. Vaginal bleeding is commonly due to menstrual residue or vaginitis, etc. And urethral bleeding is commonly caused by urinary tract infection, urethral polyps, urethral stones, etc. For male patients, they should pay attention to urethral bleeding. A, urethral bleeding: 1, urinary tract infection: after urinating with paper wipe with light blood, the first consideration is the emergence of urinary tract infection, the repeated stimulation of inflammation can lead to the emergence of hematuria, and accompanied by frequent urination, urinary urgency, painful urination performance, the occurrence of pyelonephritis, ureteritis, cystitis and urethritis, can appear hematuria symptoms, should promptly use antibiotics such as cefaclor, ofloxacin for treatment; 2, urethra polyp, urethral caruncle: urethral polyp, caruncle, can appear the bleeding of the urethra, it is recommended to check the ultrasound and urinary routine, do vulvar examination, usually seen in middle-aged and elderly women, need to be treated with topical estradiol benzoate ointment, when the effect is not good, can consider surgery; 3, urethral stones: urethral serious stones damage the urethra, can appear the bleeding of the urethra, can also appear urinary difficulties, urinary bifurcation and other conditions, treatment When the stone is large, it can also be treated by extracorporeal shock wave, urethroscopy, cystoscopy Holmium laser lithotripsy, etc. 4, other: strenuous exercise, renal tuberculosis, nephritis, urological tumors and other diseases can also lead to urethral bleeding, need to clarify the specific causes to take the appropriate treatment. Second, vaginal bleeding: 1, menstrual residue: When the amount of menstruation is not completely drained in the late menstrual period, light blood water can appear. Women should pay attention to the cleanliness of their intimate parts in time after menstruation to avoid infection and unclean menstrual blood, and no special treatment is usually needed; 2. Vaginitis: When patients have vaginitis, hematuria may appear, along with abnormal vaginal discharge, vaginal itching and burning sensation, etc. At this time, the causative organism should be clarified and sensitive antibiotics should be used for treatment; 3. Other diseases: In addition to the above common diseases, midmenstrual Ovulatory bleeding, IUD stimulation, endometritis, endometrial lesions, cervical cancer, cervical lesions, cervical polyps and other diseases can also cause vaginal bleeding, which need to be treated accordingly according to the specific causes. Therefore, when there is light blood water with paper wipe after urination, first of all, the source of blood water should be clarified, relevant examination should be perfected, and after the cause is clear, corresponding methods of treatment should be adopted to help patients relieve the symptoms of hematuria as soon as possible and prevent the condition from worsening.