Bladder tumors grow quietly inside the bladder lining. Most are found early because they bleed long before they hurt. Painless blood is the hallmark. Urine may turn light pink, bright red, or contain small clots—often on and off, so many blame a simple infection. Urgency and frequency climb. You dash every hour, yet only a small amount comes out each time, and the urge returns fast. Stream changes show late. The flow becomes thin, forked, or stops and starts if the tumor blocks the urethra. Pelvic pressure or a dull ache above the pubic bone can appear as the tumor... Learn more