Blood in urine is an early symptom of bladder cancer

The main symptom of early bladder cancer is hematuria. Hematuria can be divided into indirect and painless. Most patients have hematuria symptoms throughout the whole process, and some patients have hematuria in the later stage. The manifestations of indirect and painless hematuria are:

Indirectness refers to the intermittent occurrence of hematuria, which can stop or alleviate on its own. The interval between two episodes of hematuria may be several days, months, or even half a year, which can easily create the illusion that hematuria has been cured, preventing patients from seeking medical treatment in time.

Painlessness means that when hematuria occurs, the patient does not feel any pain or other discomfort. Scholars call it painless hematuria. This is different from the pain in the kidneys and ureters that often accompanies hematuria caused by stones, and it is also different from the frequent urination, urgent urination, and painful urination that are accompanied by hematuria caused by cystitis. However, when cancer tumors are necrotic, ulcerated, or infected, bladder irritation symptoms such as frequent urination, urgent urination, and painful urination may occur.

Painless hematuria is the most important sign of bladder cancer. Almost all bladder cancer patients will first show this symptom. They should seek medical attention in time to ensure early detection and early treatment.