dark red can be old blood and can be normal.
Bright cherry red is the normal systemic arterial blood color
Then that's normal.
Bright red period blood typically occurs on the heaviest days of your period. It is totally normal and does not mean that there is anything wrong.
Yes, it's completely normal to have bright red blood during menstruation. You may also sometimes have brown or pink flow (aka 'spotting'), darker red blood, bits of uterine lining in your flow, discharge, and mucus. All of this is perfectly normal.
You might want to check with a doctor
no its not normal
Arterial Blood is Bright Red
Then it's a normal period, nothing to worry about.
someone help please
this better to say blood with high CO2 concentration is dark and blood with high CO (Carbon monoxide toxemia) is bright, so O2 saturated blood is just NORMAL.
no, it's a brownish pink, and does not look like normal period blood.