My 7 year old daughter is complaining of pain while urinating.  There were also little speck of blood on her panties.  She also mentioned that there was "little red things" in the potty after she urinated but flushed it before I could see.     What might be causing this?
It may be due to complicated Urinary tract infection either pyelonephritis, cystitis. Renal calculi, some renal tumor with UTI or any urethral injury.