Speedy Sticks
Help center
347-292-9570Log inBook visit
  1. Home
  2. /Blog
  3. /Are Blood Clots During Your Period Normal? Here's What You Need to Know

Site footer

Need a blood draw at home?

Book a certified visit or explore where we operate nationwide.

Book a VisitFind Locations

Phone: 347-292-9570 · Fax: 347-658-1021

Speedy Sticks

Mobile phlebotomy and at-home blood draw services for patients, providers, and laboratories nationwide.

Serving all 50 states with reliable specimen collection.

Contact

  • Phone: 347-292-9570
  • Fax: 347-658-1021
  • Email: info@speedysticks.com
  • Address: 16 East 34th Street, New York, NY 10016
Core services
  • Mobile Phlebotomy
  • Lab kit directory
  • Lab Kit Collection
  • On-Site Phlebotomy
  • Clinical Trial Phlebotomy
All services →
Who we serve
  • For Patients
  • For healthcare organizations
  • For Providers
  • For Telehealth Platforms
  • For Laboratories
  • For Clinical Trials & CROs
  • For Hospitals & Health Systems
  • For Employers
  • For Care Facilities
  • Mobile Phlebotomy API
Company
  • About
  • SpeedySafe Protocol
  • Pricing & Value
  • Works With Your Lab
  • Terms & Conditions
  • Careers
  • Contact
  • Blog
  • Resources
  • Affiliate program
Locations
  • Mobile phlebotomy in Miami, FL
  • Mobile phlebotomy in NYC
  • Mobile phlebotomy in Los Angeles
  • Mobile phlebotomy in Chicago
View all locations →

Serving mobile phlebotomy nationwide across all major U.S. cities.

Popular searches

  • Blood draw at home
  • At-home blood tests
  • Phlebotomy near me
  • Quest & Labcorp alternative
  • Support & contact

Available on

Download Speedy Sticks on the App StoreGET IT ONGoogle Play

Trusted Nationwide

BBB Accredited Business

© 2026 Speedy Sticks LLC. All rights reserved.

RSS feedPrivacy PolicyTerms & Conditions
CallBook a visit

Blog

Are Blood Clots During Your Period Normal? Here's What You Need to Know

By Speedy Sticks Clinical Team·Updated June 28, 2026·8 min read·Updated June 28, 2026

Are Blood Clots During Your Period Normal? Here's What You Need to Know

In this article

  1. 1.What Exactly Are Menstrual Blood Clots?
  2. 2.Why Do Menstrual Blood Clots Form?
  3. 3.How Common Are Menstrual Blood Clots?
  4. 4.What Size and Shape of Blood Clots are Normal During a Period?
  5. 5.What Are the Differences Between Normal and Abnormal Menstrual Blood Clots?
  6. 6.What Causes Heavy Periods With Blood Clots?
  7. 7.When Should You Be Concerned About Blood Clots During Your Period?
  8. 8.Can Birth Control Pills Affect the Presence of Blood Clots During a Period?
  9. 9.How to Manage Menstrual Blood Clots: Tips and Remedies
  10. 10.Medical Treatments for Menstrual Blood Clots: When to Consider Seeing a Doctor
  11. 11.Sources and further reading

Small menstrual blood clots — dark red or maroon and smaller than a quarter — are normal and occur during the heaviest days of a period. Clots form when blood pools in the uterus and coagulates before being expelled. Clots larger than a quarter, or bleeding that soaks a pad or tampon every hour for several consecutive hours, warrant evaluation by a healthcare provider, as they may indicate fibroids, adenomyosis, hormonal imbalance, or a clotting disorder detectable through blood testing.

Are you experiencing blood clots during your period and wondering if it’s normal? Menstrual blood clots can be concerning and uncomfortable, but they are a common occurrence for many women. We will discuss what menstrual blood clots are, why they form, and how common they are. We’ll also explore the differences between normal and abnormal menstrual blood clots, as well as the causes and symptoms of heavy periods with blood clots. Additionally, we’ll provide tips for managing menstrual blood clots and when to consider medical treatment. Read on to learn everything you need to know about blood clots during your period.

What Exactly Are Menstrual Blood Clots?

Menstrual Blood clots are thick, gel-like masses that can be passed during a period. They’re made up of blood cells, fibrin, and tissue from the uterus. Why do they form? As the uterus sheds its lining during a period, the blood expelled can coagulate and form clots if it flows out quickly. Blood clots can range in size from small clumps to larger, quarter-sized masses. During a period, the uterus sheds its lining in order to prepare for a potential pregnancy. Small to moderate-sized blood clots are usually nothing to worry about, but larger clots or persistent heavy bleeding may require medical attention. If you’re experiencing painful or large blood clots during your period, talk to your healthcare provider to determine the underlying cause and appropriate treatment.

Why Do Menstrual Blood Clots Form?

Menstrual blood clots form when blood coagulates, or clots, before it can exit the body during a period. Heavy menstrual flow or a rapid rate of blood loss are common causes. During a period, the uterus contracts to expel the lining that has built up. This can cause blood to be expelled quickly, interfering with its ability to clot. If the blood doesn’t coagulate before exiting, it can pool together and form clumps. Blood clots during a period can be caused by a variety of factors, including
  • Hormonal imbalances
  • Uterine fibroids, Endometriosis
  • Adenomyosis, and certain medications can cause blood clots during a period. In some cases, they may be a symptom of an underlying health condition.
While small to moderate-sized blood clots are normal, larger clots or persistent heavy bleeding should be evaluated by a healthcare provider. Talk to your doctor if you’re experiencing heavy bleeding or blood clots during your period to determine the underlying cause and appropriate treatment.

How Common Are Menstrual Blood Clots?

Menstrual Blood clots are a common occurrence during a period. In fact, most women will experience blood clots at some point during their reproductive years. The size and frequency of menstrual blood clots can vary from person to person. Some women may only experience small, barely noticeable clots, while others may experience larger, more noticeable clots. Factors such as age, hormonal changes, and underlying health conditions can also impact the frequency and size of blood clots during a period. Women who experience heavy periods, or menorrhagia, are also more likely to experience blood clots. It’s important to note that while menstrual blood clots are common, persistent heavy bleeding or the passage of large blood clots may indicate an underlying health condition that requires medical attention. If you’re concerned about the frequency or size of blood clots during your period, talk to your healthcare provider to determine the underlying cause and appropriate treatment.

What Size and Shape of Blood Clots are Normal During a Period?

The size and shape of blood clots during a period can vary from person to person. In general, small to moderate-sized clots are normal and may appear as dark red or maroon in color. Blood clots that are larger than a quarter or the size of a small egg, or that are accompanied by heavy bleeding, may indicate an underlying health condition and should be evaluated by a healthcare provider. Additionally, the shape of blood clots can also vary. Some may be oval or round, while others may appear more elongated or irregular in shape. It’s important to note that the size and shape of blood clots may change throughout a period and can be influenced by factors such as hormonal changes, age, and underlying health conditions.

What Are the Differences Between Normal and Abnormal Menstrual Blood Clots?

Normal Menstrual Blood Clots are small to moderate in size, dark red or maroon, and accompanied by light bleeding. They may vary in shape and consistency but shouldn’t interfere with daily activities. Abnormal Menstrual Blood Clots may be larger than a quarter or a small egg, and may cause heavy bleeding or other symptoms like pain or discomfort. They may also have an irregular shape or be accompanied by unusual discharge. Abnormal Menstrual Blood clots could be a sign of underlying health conditions like fibroids, endometriosis, or hormonal imbalances. If you notice a significant change in clot size, frequency, or appearance, or experience abnormal symptoms during your period, talk to your healthcare provider to determine the underlying cause and appropriate treatment.

What Causes Heavy Periods With Blood Clots?

Heavy periods with blood clots can be caused by hormonal imbalances, fibroids, endometriosis, adenomyosis, pelvic inflammatory disease, and bleeding disorders. Hormonal Imbalances: Disrupt the balance of menstrual hormones, leading to heavy and irregular periods with blood clots. Fibroids: Are noncancerous growths in the uterus that can cause heavy bleeding and blood clots. Endometriosis: Occurs when the lining of the uterus grows outside it, leading to heavy bleeding and painful periods. Adenomyosis is when the lining of the uterus grows into the muscle wall, causing heavy bleeding and blood clots. Pelvic Inflammatory Disease: Is an infection of the reproductive organs that can cause heavy bleeding and blood clots. Bleeding Disorders: Such as von Willebrand disease or platelet disorders can also cause heavy periods with blood clots. Treatment options may include hormonal therapy, medication to reduce bleeding, or surgery in severe cases.

When Should You Be Concerned About Blood Clots During Your Period?

While Blood Clots during your period are common, there are situations where you should be concerned and seek medical attention if you experience:
  • Blood clots larger than a quarter or the size of a golf ball
  • Heavy bleeding, severe cramps, or other symptoms such as dizziness or lightheadedness
  • Blood clots for the first time or suddenly, especially if you’re older than 25 years
  • Persistent blood clots over several menstrual cycles or other symptoms such as pelvic pain or abnormal vaginal discharge.
In rare cases, Blood Clots during your period may indicate a more serious condition such as uterine cancer or a bleeding disorder. A healthcare provider can perform a physical exam and order additional tests as needed to determine the cause and provide appropriate treatment. If you’re concerned about your menstrual bleeding patterns, including the presence of blood clots, don’t hesitate early diagnosis and treatment can help prevent complications and improve your quality of life.

Can Birth Control Pills Affect the Presence of Blood Clots During a Period?

Yes, birth control pills can affect the presence of blood clots during your period. They contain synthetic hormones that regulate your menstrual cycle and prevent ovulation which can reduce the amount of blood flow and clotting. Birth control pills can be prescribed to women with heavy menstrual bleeding and blood clots, but they may not work for everyone and can have side effects. It’s also worth noting that some types of birth control pills, such as those with higher doses of estrogen, may increase the risk of blood clots in some women.

How to Manage Menstrual Blood Clots: Tips and Remedies

  • Use menstrual products designed for heavy bleeding: Menstrual cups or pads specifically designed for heavy bleeding can help manage blood clots and reduce leakage.
  • Stay hydrated: Drinking plenty of water can help prevent dehydration, which can make menstrual cramps and heavy bleeding worse.
  • Apply heat: Applying heat to your lower abdomen can help reduce cramping and ease the flow of blood.
  • Try over-the-counter pain relief: Over-the-counter pain relief medications like ibuprofen or acetaminophen can help alleviate cramps and discomfort.
  • Consider hormonal birth control: As mentioned earlier, hormonal birth control can help regulate menstrual cycles and reduce the amount of bleeding and clotting.
  • Consult a healthcare provider: If you’re experiencing heavy bleeding or blood clots, talk to a healthcare provider. They may recommend additional treatments or suggest testing for underlying conditions that may be contributing to your symptoms.
It’s important to note that while these tips and remedies may be helpful, they may not be effective for everyone. Always talk to a healthcare provider before starting any new treatments or remedies to ensure they are safe and appropriate for your individual needs.

Medical Treatments for Menstrual Blood Clots: When to Consider Seeing a Doctor

While most cases of menstrual blood clots are normal, there are instances where medical treatment may be necessary. If you experience any of the following symptoms, you should consider seeing a doctor:
  • Severe pain during menstruation
  • Heavy bleeding that lasts for more than a week
  • Passing large blood clots, especially if they’re accompanied by excessive bleeding
  • Symptoms of anemia, such as fatigue, weakness, and shortness of breath
Don’t hesitate to discuss all treatment options with your doctor, and be sure to

Sources and further reading

  • MedlinePlus: Menstruation
  • Office on Women's Health: Menstrual Cycle

Need Blood Work Done? Skip the Waiting Room

A certified phlebotomist comes to your home for any blood panel your provider ordered — CBC, hormone levels, clotting factors — results to your lab of choice.

Book a visit →

Frequently asked questions

Are blood clots during your period normal?

Small menstrual clots, roughly the size of a coin or smaller, are common and usually normal, especially on heavier flow days. They form when blood pools faster than the body can break it down.

When are period blood clots a concern?

See a provider if clots are larger than a quarter, occur regularly, come with very heavy bleeding that soaks through a pad or tampon hourly, or are paired with severe pain or fatigue.

What causes large menstrual clots?

Larger clots can be linked to heavy periods caused by hormonal imbalances, fibroids, polyps, thyroid issues, or other conditions. A blood test can help check for related anemia or hormone problems.

Can blood tests help with heavy periods?

Yes. Blood tests can check for iron-deficiency anemia, thyroid function, and hormone levels, which helps your provider identify what may be driving heavy bleeding and clotting.

Related articles

  • Can a Blood Test Detect Cancer? Here’s What You Need to KnowCancer, one of the leading causes of death globally, often hides in plain sight. By the time it’s detected, treatment options may be limited. This
  • Leukemia Blood Test Breakthroughs You Need to KnowLeukemia Blood Test: In recent years, the field of medical diagnostics has witnessed remarkable advancements, especially in the realm of leukemia detection
  • Understanding Lipase Blood Test: What You Need to Know as a PatientA lipase blood test measures pancreatic enzyme levels. Learn the normal range, what causes elevated lipase, how high is too high, and when a result signals…

Get this done at home

  • Book an at-home blood draw
  • Women's health blood draws at home
  • Mobile phlebotomy in New York City
  • Mobile phlebotomy in Los Angeles
  • Hormone blood testing at home
  • Postpartum blood draw at home

Services & more reading

  • Mobile phlebotomy
  • All services

Sample coverage areas

  • New York, NY
  • Los Angeles, CA
  • Chicago, IL
  • Houston, TX
  • Phoenix, AZ
  • Philadelphia, PA
  • San Antonio, TX
  • Dallas, TX
  • San Francisco, CA
  • Austin, TX
  • Boston, MA
  • Miami, FL
  • Atlanta, GA
  • Las Vegas, NV
  • Minneapolis, MN
  • Tampa, FL
  • Orlando, FL
  • Fort Worth, TX
  • Indianapolis, IN
  • Washington, DC

New to Speedy Sticks?

We bring the blood draw to you

Speedy Sticks is a nationwide mobile phlebotomy service. A certified phlebotomist comes to your home or office, collects your sample, and handles the lab logistics—no clinic, no waiting room, no hassle. You pick a time, we show up, and your sample gets where it needs to go.

  • At home or at work

    Skip the trip — a phlebotomist comes to you, nationwide.

  • Certified & vetted

    Background-checked, professional phlebotomists.

  • Works with your order

    We collect for your existing lab or doctor's order.

Ready to skip the clinic?

Book a certified at-home blood draw in minutes—or check whether we already cover your area.

Book your at-home blood drawSee how it worksCheck your area

Learn more about mobile phlebotomy services nationwide.