Detailed explanation of the early symptoms of bladder cancer

The typical symptom of early bladder cancer is hematuria. Hematuria is usually painless and intermittent. Hematuria means that blood can be seen in the urine with the naked eye, but sometimes it cannot be seen with the naked eye and requires professional examination to be discovered. The hematuria stops after urination. The following is an introduction to the symptoms of bladder cancer:

The early symptoms of bladder cancer are as follows:

1. Hematuria is the most common first symptom of bladder cancer. 85% of patients may experience recurrent painless intermittent macroscopic hematuria. The amount of bleeding may be more or less, and in severe cases, there may be blood clots. Hematuria occurs sooner or later in 100% of cases of bladder cancer.

2. Symptoms of bladder irritation: Infiltration of the tumor itself, ulceration, necrosis, infection and blood clots of cancerous tissue can all become stimuli that cause the bladder muscles to contract and produce the urge to urinate; frequent urination (8%), urgency (8%), pain when urinating (5%) and persistent feeling of urinating, persistent distension and pain in the waist, and urinary incontinence when the tumor invades the sphincter.

3. Difficulty in urination. About 7% of bladder cancer patients experience difficulty in urination, and even urine retention, due to the shedding of cancer tissue or the tumor itself and blood clots blocking the internal opening of the bladder.

4. Symptoms of upper urinary tract obstruction When cancer invades the ureteral orifice, it causes dilation and accumulation of water in the renal pelvis and ureteral orifice, and even infection, which can cause varying degrees of backache, back pain, fever, etc. If both sides of the ureteral orifice are invaded, symptoms of acute renal failure may occur.

5. About 3% of bladder cancer patients present with a lower abdominal mass as the first symptom, most of which are adenocarcinomas at the top of the bladder or highly malignant solid bladder cancers in other parts of the body.

Bladder cancer can also be complicated by infection. If it is complicated by infection, urinary tract irritation will also appear. The chance of metastasis of advanced bladder cancer is relatively high, but the most common metastasis pathways are direct invasion and lymph node metastasis. When metastasis occurs, the patient's symptoms will be more complicated.