If hematuria occurs after catheterization, you can drink more water to observe, bladder irrigation, you can decide the treatment plan according to the degree of hematuria, if necessary, you can take antiemetic medication for symptomatic treatment. If the urine color is light red washed meat water, generally do not need special treatment, drink more water to promote the urine can be discharged, because in the catheterization process may be damaged to the urethra, bladder or prostate mucosa, this time there can be a small amount of bleeding, can be self-stopping, generally do not need special treatment. If the color of urine is dark red or bright red, the bleeding is relatively large, you should go to the hospital in time to seek medical attention, bladder irrigation, the bladder residual blood flushing out, to prevent the formation of clots and clogging of the catheter, and if necessary, use the water capsule to compress the bladder neck to close the posterior urethra and thus reduce the bleeding. If you still can’t stop the bleeding, you can apply some hemostatic drugs intravenously, such as: phenol sulfonyl ethylamine injection, aminomethylbenzoic acid injection, posterior pituitary injection and other drugs to stop the bleeding. When hematuria can not be relieved by itself, it should be timely to the hospital, active treatment, to avoid further progress of the disease.