Period · Period 101
Why Period Blood Changes
By the eva team · · 2 min read
Ever noticed that your period blood doesn't always look the same? It can change from bright red to dark red or brown during your period. Learn why these colour changes happen and which changes are usually normal.
1. Why Does Period Blood Change Colour?
Period blood doesn't always look the same from one day to the next. You might notice bright red, dark red or even brown blood. Most of the time, these changes happen because of how quickly the blood leaves your uterus and how long it takes to leave your body.
2. Bright Red? Usually Fresh Blood
Bright or vivid red blood often means the blood is flowing out of the uterus relatively quickly. You may notice this more during days when your flow is heavier.
3. Dark Red? It May Have Taken Longer To Leave
Dark red or deep burgundy blood can happen when blood takes a little longer to leave the uterus. It may be more noticeable toward the middle or later part of your period.
4. Brown Blood? Often Older Blood
Brown or rusty-looking period blood is often blood that has taken longer to leave the body and has had more time to change colour. It can commonly appear at the beginning or end of a period.
5. Your Period Can Have More Than One Colour
It's completely possible to see different colours during the same period. Your flow may start brighter, become darker and then turn brown toward the end. This can be part of a normal period pattern.
6. Small Changes Can Happen Month To Month
Your period may not look exactly the same every month. Changes in flow speed, cycle timing and how long blood stays in the uterus can affect its appearance. A little variation is often normal.
7. Colour Is Only One Part Of The Picture
Period colour alone usually doesn't tell you whether something is wrong. It's also important to notice your flow, how long you bleed, how you feel and whether anything has changed significantly from your usual pattern.
8. Notice Changes. Don't Panic.
Most period colour changes are simply part of how menstrual blood moves through your body. If you notice a major change in your bleeding pattern, very heavy bleeding or symptoms that worry you, it's a good idea to talk to a healthcare professional.