My friend was recently diagnosed with a urine infection after that my friend had a medicine for urine infection and did a routine Urine C/s test found the result was normal no infection. Later my friend did an ultrasound and found out that he has a microlith 1.9mm on the left
kidney . He doesn't have any pain but he still has a warm sensation on his left side where there is a microlith and it does not go away .