Kidney stones are one of the most common problems of the urinary tract—and one of the most painful disorders. How much do you know about kidney stones? Try your hand at this quiz, based on information from the National Institute of Diabetes and Digestive and Kidney Diseases.
You might hear about frequent urination in women, and think men are safe until they age. But frequent urination in men occurs at all ages, and it happens to both quite often.