Advanced symptoms of bladder cancer

Bladder cancer is a malignant overgrowth of cells in the bladder. The most common overgrowth is in the bladder cavity, in the lining of the bladder. The surface of hollow organs in the body is usually made up of epithelial cells. For example, the inside of your cheeks, stomach, intestines, gallbladder, and bladder are all made up of a layer of epithelial cells. Each organ has its own type of epithelial cells. The epithelial cells in the bladder's mucosa are called urothelial cells, and the cancer that develops from them is called urothelial carcinoma, which accounts for 90%-95% of all bladder cancers and is the most common type of bladder cancer.

Advanced bladder cancer may infiltrate around the pelvic floor or metastasize to distant sites. Common distant metastasis sites are the liver, lungs, bones, etc. When the tumor infiltrates the posterior urethra, prostate, and rectum, corresponding symptoms will appear. When the tumor infiltrates the ureteral orifice, it causes dilation and accumulation of water in the renal pelvis and ureter, and even infection, causing varying degrees of low back pain, back pain, or fever. If both ureteral orifices are invaded, symptoms of acute renal failure may occur. When the tumor is accompanied by bladder stones, symptoms of bladder stones such as urinary pain and hematuria will appear. Systemic symptoms include nausea, loss of appetite, fever, weight loss, anemia, and cachexia.