Urinary system diseases can hit anywhere from the kidneys to the tip of the penis. Most send the same early warnings—burn, blood, and bathroom dashes—so knowing the pattern helps you act fast.

Burning is the universal red flag. It stings at the start of the stream, lingers afterward, and can feel like hot sauce on the pee hole.

Blood shows up next. Urine may turn pink, tea-brown, or contain small clots, often without any pain.

Urgency and frequency team up. You race to the bathroom every hour, yet only a spoonful comes out each time.

Flank or lower-belly pain joins in. A deep ache below the ribs or above the pubic bone can throb and shoot into the groin as stones or infections move.

Stream changes signal blockage. The flow becomes thin, forked, stops and starts, or drips long after you think you’re done.

Late signs include fever, chills, and swelling—an alarm that the kidneys are angry or the bladder can’t empty.