Kidney cancer is cancer that originates in the kidneys. Your kidneys are two bean-shaped organs, each about the size of your fist. They're located behind your abdominal organs, with one kidney on each side of your spine.
Kidney cysts are round pouches of fluid that form in the kidneys. Kidney cysts can be associated with serious disorders that can impair kidney function.
Acute kidney failure is the sudden loss of your kidneys' ability to perform their main function of eliminating excess fluid and salts (electrolytes) as well as waste material from your blood.
Kidney infection (pyelonephritis) is a specific type of urinary tract infection (UTI) that generally begins in your urethra or bladder and travels up into your kidneys.
Kidney stones (renal lithiasis) are small, hard deposits that form inside your kidneys. Kidney stones are made of mineral and acid salts.
Kleptomania is the irresistible urge to steal items that you don't really need and that usually have little value. It's a serious mental health disorder that can tear your life apart if not treated.
Knee pain may be the result of an injury, such as a ruptured ligament or torn cartilage. Or, certain medical conditions, including arthritis, gout and infection, may be at the root of your knee pain.