Pain caused by the kidneys is typically felt in the flank area, which is in the back, just at the lower edge of the ribs on either side of the spine. Pain caused by the kidneys tends to be sharp, severe and occur in waves.
Kidney infection leads to a sharp, aching pain and even the lightest touch in the flank area is painful.
Fever, nausea, vomiting are additional symptoms.
If you are experiencing dull pain as urinating, you may have some gradual blockage to urine flow.

So, it is important to give information about the character of pain, where is exactly located and if it is spreading.

If this pain becomes worse every day, visit your physician.

Burning or pain with urination (dysuria) may be felt at the opening to the urethra or, less often, over the bladder (in the pelvis, the lower part of the abdomen just above the pubic bone). Occasionally, if a woman has vaginal irritation (for example, due to inflammation or infection of the vagina or of the area surrounding the vaginal opening, called vulvovaginitis), she may feel a burning sensation when urinating.