Hi, welcome to HCM.
It is less likely that bleeding is due to bladder cancer
. In bladder cancer bleeding will occur every time after micturation. It looks like a postcoital bleed only.
However as you have family history do regular follow up by ultrasonography
or 5 yearly by cystoscopy
. If you have similar complaints I future please consultyour surgeon for opinion.
Hope I have answered your query.