Hi thanks for your question.
Pain during urination in post hystrectomy patient with normal urine eamination and normal ultrasound
most probably could be due to No1;Addhesion formation in pelvis involving bladder and urethra
. Second possibility could be entrapment of urinary bladder
in the uterine stump and No 3 could be slightly higher pull up of the uterine stump resulting in pull up of the urethra which is giving you pain during urination.Consult your operating gynaecologist who may examine you to determine exact cause of pain during urination.
Hope this answers your question.