Welcome to HCM,
You haven't mentioned the date of your last menstruation
, whether it contains clots or not & average duration of your menstrual cycle.
Bright red colour of bleeding is due to fresh blood.
Bleeding can be caused due to pregnancy
, menstruation, medications, trauma, diseases & stress
Pelvic examination and some tests like Pregnancy test, C.B.C., Bleeding/Clotting time, TSH
, PAP smear
etc. will be required.
You should please consult a Gynecologist for examination & treatment.
With good wishes,