What are the Symptoms of the 14 Most Common Cancers?

6. Bladder Cancer

Tumors in the bladder usually cause symptoms right away, making it one type of cancer doctors often detect early. The condition is most common in older men with a history of smoking. The main symptoms are pelvic pain, painful urination, and blood or blood clots in the urine. Some people also experience lower back pain and frequent urination. These symptoms are similar to a bladder or kidney infection, and this similarity can delay detection.