If the cause of hematuria in men is urinary tract infection, it can be cured by routine urine examination and effective anti-inflammatory and symptomatic treatment after the infection is diagnosed, and it is not a serious disease. If the hematuria is caused by urinary stones, ultrasound examination is needed to clarify the size of the stones, and conservative treatment with stone removal or lithotripsy can cure the disease, which is also not a serious case. For painless hematuria, patients should be alert to urinary tumors. Therefore, patients should be carefully investigated for the occurrence of urological tumors. If the diagnosis of hematuria caused by tumor is confirmed, it is a relatively serious disease. If malignant tumor is not treated in time to develop metastasis, the best time for surgery will be lost and only palliative treatment, such as radiotherapy, chemotherapy, and immunotherapy, can be performed. Therefore, for hematuria caused by having a major disease, all of them belong to relatively serious conditions and therefore should be treated promptly.