PERIOD BLOOD - WHAT THE COLOR OF YOUR PERIOD BLOOD CAN TELL YOU ABOUT YOUR HEALTH & FERTILITY
- Last updaed on

It’s a taboo topic that we need to normalize: period blood. The color, consistency, and texture of your flow can reveal way more about your overall health than you realize. It’s time to de-stigmatize this essential vital sign and start decoding symptoms.

Period blood is not something we’re taught to talk about. In fact, we’re pretty much raised to hide from it. Pay attention to any maxi pad or tampon commercial and all you’ll see is the same blue liquid over and over again.
The truth is: periods matter. They matter SO much, in fact, that the American College of Obstetricians and Gynecologists (ACOG) has declared menstruation a vital sign.The appearance, frequency, and consistency of your menstrual blood provides invaluable clues into your overall health, and if you want to finally banish symptoms and feel amazing, it’s time to get familiar with your flow.
Think of checking your flow every month like being able to access free lab work for your hormone levels. Knowing the color tells you which hormones are in and out of balance and if your eating is synced with your hormones. Your period provides genius (and free!) biofeedback for you.
Your Guide to Interpreting the Color of Your Period Blood
Ready to recognize what’s normal and what’s not? Check out my guide to period blood:
- The color: Bright, cranberry-red
- The consistency: Like jello mix that hasn’t set (medium viscosity: not too thin, not too thick)
- The length: 5-7 days
- The frequency: Every 28-30 days
What it means: Congratulations! This is what’s considered a normal, healthy period. If you’re already cycle-syncing and eating nutrient-rich, FLO-supportive foods, keep it up. Make sure to also incorporate all the necessary lifestyle tweaks and essential supplements to ensure your cycle stays on track.
- The color: Brown
- The consistency: Thin/streaky
- The length: Varies
- The frequency: Varies
What it means: That brown stuff is old oxidized blood that didn’t make it out of your uterus during your last cycle and it’s caused by low progesterone levels. These low levels may be at the root of your period symptoms and may also cause you to struggle with regular ovulation.
- The color: Dark, purple/blue
- The consistency: Thick with clots
- The length: Longer than a week
- The frequency: Varies
What it means: This frozen blueberry color is a sign of too much estrogen. Estrogen levels that are higher in proportion to progesterone cause a lot of the typical symptoms associated with problematic periods, and potentially lead to endometriosis, cysts, or fibroids. Over the long term, excess estrogen can lead to more serious health consequences.
- The color: Barely-there pink
- The consistency: Too light to tell
- The length: 3 days or less
- The frequency: Varies
What it means: A super-short period and extra light bleeding may indicate low estrogen levels. Your hormones are made from the food you eat, so your low estrogen is likely due to vitamin and nutrient deficiencies from improper and extreme dieting as well as from adrenal burnout.