Question: What are the symptoms of kidney stones?
Answer: Symptoms of kidney stones include

sharp pains in your back, side, lowerabdomen, or groin
pink, red, or brown blood in your urine, also calledhematuria
a constant need to urinate
pain while urinating
inability to urinate or can only urinate a small amount
cloudy or bad-smelling urine

See a health care professional right away if you have any of these symptoms. These symptoms may mean you have a kidney stone or a more serious condition.

Your pain may last for a short or long time or may come and go in waves. Along with pain, you may have

nausea
vomiting

Other symptoms include

fever
chills
Question: What causes kidney stones?
Answer: Kidney stones are caused by high levels of calcium, oxalate, and phosphorus in the urine. These minerals are normally found in urine and do not cause problems at low levels.

Certain foods may increase the chances of having a kidney stone in people who are more likely to develop them.