How to distinguish between menstrual periods and vaginal bleeding

Patient's question:

No

Doctor's answer:

It can be distinguished by color and condition. Menstrual blood is generally dark red and quite viscous, and it may also have a mild, non-pungent odor. It is the smell of the body's waste. Vaginal bleeding may mix with white discharge or flow out directly, bright red and non-viscous. The amount is small, with no odor.