Advertisement
What those colors mean and when you need to worry
Your period — it comes, it goes. It’s light, it’s heavy. But have you noticed it sometimes changes color — from crimson red to light pink to brown? What’s that all about? Ob/Gyn Swapna Kollikonda, MD, offers a color-coded guide to period blood.
Advertisement
Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy
“The color of period blood depends on how long the blood stays in the uterus and vagina,” says Dr. Kollikonda. “The longer it sits, the darker it gets because the blood oxidizes — it reacts with oxygen in your body and gets darker.”
Period blood commonly takes on these different colors:
When a period starts, your vaginal mucus discharge may mix with some fresh, bright red blood, which then gets diluted. What’s shed is blood with a pink hue. Lighter periods may also appear more pink than red.
As your uterus actively contracts, it sheds blood quickly. Since the blood doesn’t have time to oxidize, it remains a vibrant red.
If you have a moderate period, it may take longer for the uterus to shed the lining. As it sits in the uterus, it gets darker.
If your uterus doesn’t contract well and sheds blood quickly, it can cause blood to stay in the uterus and clump together, forming clots. Clots can be tiny or big, but they are usually a deep red color.
As your period ends, you might experience a lighter blood color, which then mixes with vaginal mucus discharge.
“Ob/gyns are rarely concerned about the different colors of period blood,” says Dr. Kollikonda. “If you have spotting between your period or post-menopausal bleeding or a heavy flow or lighter flow, that’s when we want to investigate.”
Advertisement
She also wants to know if you:
Dr. Kollikonda says color, consistency and amount are subjective. If you find it worrisome, then it’s worth reaching out to your provider. Most likely, you’ll get reassurance that what you are experiencing is normal.
To rule out problems, your ob/gyn will discuss medications you are taking. Drug interactions with birth control pills or not taking them correctly can also can also cause irregular periods.
Next, you will probably have a transvaginal ultrasound. During this painless procedure, your provider inserts an ultrasound probe into your vagina. The probe emits soundwaves that create detailed pictures on a screen.
“We use the pictures to help diagnose endometrial growths (polyps), fibroids or adenomyosis (when the uterine lining (endometrium) grows into the wall of the uterus),” says Dr. Kollikonda. “All these issues might impact how your uterus contracts and can cause clots or irregular bleeding or excessive bleeding.”
Depending on the findings, your doctor may want to run additional tests before figuring out how to best care for you.
Advertisement
Learn more about our editorial process.
Advertisement
A second appointment is common, especially after your first mammogram and if you have dense breasts — but it doesn’t necessarily mean anything is wrong
These herbal pellets aren’t backed by science and can be harmful
Depending on the type of surgery, a hysterectomy may or may not cause menopause symptoms
The research isn’t clear, but it’s safe to try this essential mineral for relief
Instead of protecting you from infections, douching your vagina can do the very opposite
Missed periods, heavy periods, painful sex and frequent hot flashes are just a few symptoms worth discussing with your provider
IUDs can make your period lighter, heavier, irregular or stop it completely
This burnout is characterized by physical and mental exhaustion and feelings like worry, guilt and overwhelm
If you’re feeling short of breath, sleep can be tough — propping yourself up or sleeping on your side may help
If you fear the unknown or find yourself needing reassurance often, you may identify with this attachment style
If you’re looking to boost your gut health, it’s better to get fiber from whole foods