The color of a person’s period blood can relay vital health information. For example, orange or grey blood can sometimes indicate a vaginal infection.
During menstruation, the body sheds tissue and blood from the uterus through the vagina. This bloody discharge can vary from bright red to dark brown or black depending on how old it is.
Blood that stays in the uterus long enough will react with oxygen (oxidize). Blood that has had time to oxidize appears darker.
Hormonal changes and health conditions can also affect the color and texture of period blood.
Black
Black blood can appear at the beginning or end of a person’s period. The color is typically a sign of old blood or blood that has taken longer to leave the uterus and has had time to oxidize, first turning brown or dark red and then eventually becoming black.
Black blood can sometimes also indicate a blockage inside a person’s vagina. Other symptoms of a vaginal blockage can include:
- foul-smelling discharge.
- fever.
- difficulty urinating.
- itching or swelling in or around the vagina.
Brown or dark red
Like black blood, brown or dark red is a sign of old blood, and it may appear at the beginning or end of a period. Brown or dark red blood has not had as long to oxidize as black blood and can appear in a variety of shades.
During Pregnancy Brown/Dark Red Blood
Brown blood or spotting can sometimes also be an early sign of pregnancy that doctors refer to as implantation bleeding.
Brown discharge or spotting during pregnancy can indicate a miscarriage or an ectopic pregnancy, which is when the fertilized egg implants in a fallopian tube instead of the uterus.
Lochia
Dark red or brown vaginal discharge that occurs after giving birth is called lochia, or postpartum bleeding. Lochia is not a cause for concern and is the body’s way of expelling excess blood and tissue from the uterus.
Lochia typically begins with bright red blood and then transitions to a darker shade as the flow decreases. Over time, the discharge will then become lighter in both color and amount.
The duration of lochia varies from person to person, but it usually passes within the first few months after delivery.
Not all women experience lochia after giving birth. Women may also experience irregular periods after giving birth due to changes in hormone levels.
Bright red
Bright red blood indicates fresh blood and a steady flow. A period may start with bright red bleeding and darken towards the end of the period. Some people may find that their blood stays bright red throughout their period.
Unusual spotting or bleeding between menstrual cycles may be a sign of a STDs, such as chalmydiaor gonorrhea. Growths in the uterine lining, called polyps or fibroids, can also cause unusually heavy bleeding.
Rarely, bright red bleeding may be a sign of cervical cancer. Other symptoms of cervical cancer include:
- heavier periods.
- periods that last longer than normal.
- bleeding after sexual intercourse.
- foul-smelling vaginal discharge.
- pain in the lower back, pelvis, or legs.
- loss of appetite.
- unexplained weight loss.
Pink
Pink blood or spotting can occur when period blood mixes with cervical fluid.
Using hormonal birth control can lower estrogen levels in the body, which can lead to a lighter flow with a pinkish hue during periods.
Sexual intercourse can create small tears in the vagina or the cervix. Blood from these tears can mix with vaginal fluids and exit a person’s body as pink discharge.
- significant weight loss.
- unhealthful diet.
- anemia.
During Pregnancy Pink Blood
During pregnancy, pink discharge that contains tissue and occurs alongside cramps may indicate a miscarriage.
Orange
Blood that mixes with cervical fluid can also appear orange.
Orange blood or discharge often indicates an infection, such as bacteria vaginosis or trichomoniasis. People with orange blood should check for other telltale symptoms, such as vaginal itching, discomfort, and foul-smelling discharge.
Although orange period blood or discharge does not always indicate an infection.
Gray
Gray discharge is usually a sign of bacterial vaginosis, a condition that occurs due to an imbalance between beneficial and harmful bacteria in the vagina.
Other symptoms of bacterial vaginosis include:
- itching in and around the vagina.
- foul-smelling vaginal odor that people often describe as “fishy”..
- burning or painful urination
People with symptoms of bacterial vaginosis should see a doctor or gynecologist. Doctors usually prescribe antibiotics to treat bacterial vaginosis.
During Pregnancy Gray Blood
During the later stages of pregnancy, gray discharge containing clots can indicate a miscarriage.
Color change during a period
Blood can change in color and texture from month to month or even during a single period.
Hormonal changes, as well as a person’s diet, lifestyle, age, and environment, can all cause variations in period blood.
Period blood can vary from bright red to dark brown according to changes in flow. Infections, pregnancy, and, in rare cases, cervical cancer, can cause unusual blood color or irregular bleeding.
Clots in period blood
Healthy period blood can contain visible pieces of the uterine lining. These small pieces of tissue, or clots, in the blood are not a cause for concern.
However, very heavy bleeding or large clots can be a sign of menorrhagia. According to the Center For disease control and prevention menorrhagia is when a person has unusually heavy menstrual bleeding or periods that last for more than 7 days.
The CDC recommend seeing a doctor if a person has one of the following:
- bleeding that requires a person to change a tampon or pad after less than 2 hours
- blood with clots that are the size of a quarter or bigger
The CDC also list the following as causes of menorrhagia:
- growths on the uterus, such as uterine fibroids or polyps.
- hormonal imbalances.
- pelvic inflammatory disease.
- intrauterine birth control devices.
- bleeding disorders, such as von willebrand disease.
- certain medications, such as aspirin and anticoagulants.
- cervical or uterine cancer.
Without treatment, menorrhagia can lead to complications, such as anemia or chronic fatigue.
When to consult doc.
It is advisable for people to consult a doctor or gynecologist for any of the following symptoms:
- new or unusual vaginal discharge.
- irregular periods that change in length and flow from one month to the next.
- bleeding after menopause.
- missing three or more periods.
- foul-smelling vaginal odor.
- thick gray or white vaginal discharge.
- itching in or around the vagina.
- fever.
Anyone who is pregnant and notices any bleeding or unusual vaginal discharge should consult obg & gyne.
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