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Potential Causes for Blood Clots During Your Period



5 min read

Potential Causes for Blood Clots

by Team Thinx | 04/05/2024

Wondering what causes clots during the menstrual cycle? It's a common concern for many individuals experiencing menstruation. Blood clots during periods, though often unsettling, are a normal phenomenon for most menstruators. In this guide, we'll talk about menstrual bleeding, explore the potential causes of blood clots, and provide insights into managing this aspect of the menstrual cycle.

overview of blood clots during periods

Blood clots during periods refer to small, gel-like masses that may appear in menstrual blood. They can vary in size, from small particles to larger, more noticeable clots. Is it normal to have blood clots during your period? While the sight of blood clots may raise concerns, they're typically a natural part of the menstrual process. Many individuals experience blood clots during their periods, and understanding why they occur can help alleviate worries.

normal physiology

To understand the presence of period blood clots, it's important to grasp the normal physiological process of menstruation. Menstruation occurs because of the shedding of the uterine lining, known as the endometrium. During the menstrual cycle, hormonal fluctuations trigger the shedding of this lining, leading to menstrual bleeding. As the uterus contracts to expel the lining, blood vessels may break, resulting in bleeding. The blood may clot as it exits the body, especially when the flow is heavy or prolonged.

factors that can influence blood clots

Various factors can influence the presence of blood clots during periods. Hormonal fluctuations play a significant role in affecting the consistency of menstrual blood. Additionally, lifestyle factors such as diet, exercise, and stress levels can impact menstrual flow and clot formation.

causes of blood clots

Understanding the causes behind blood clots during periods requires looking into both physiological and lifestyle factors. Let's explore these influences in more detail:

hormonal fluctuations

Hormones play a pivotal role in orchestrating the menstrual cycle, and any imbalance can manifest in various ways, including changes in menstrual blood consistency. Fluctuations in estrogen and progesterone levels, the primary hormones governing menstruation, can disrupt the delicate balance of the reproductive system. These hormonal shifts can impact the thickness of the uterine lining, altering its ability to shed smoothly during menstruation. As a result, clots may form as the body expels the uterine lining, reflecting the intricate dance of hormones within the body.

lifestyle factors

Beyond hormonal influences, lifestyle choices can also influence the presence of blood clots during periods. Dietary habits, for instance, can significantly impact blood clotting mechanisms. Foods rich in vitamin K, such as leafy greens and broccoli, promote healthy blood clotting. On the other hand, deficiencies in vitamin K or excessive consumption of foods that thin the blood, like certain spices or supplements, may affect clot formation during menstruation.

Additionally, lifestyle factors like physical activity and stress levels can profoundly influence menstrual health. Regular exercise is beneficial for overall well-being and aids in regulating hormonal balance and promoting healthy circulation. Meanwhile, sedentary lifestyles or high-stress environments can disrupt hormonal equilibrium, potentially leading to irregular menstrual cycles and increased clotting.

understanding abnormal menstrual clots

While blood clots during periods are a common occurrence for many individuals, certain conditions and factors may lead to abnormal clotting patterns. Recognizing the signs of abnormal menstrual clots and understanding their potential causes is necessary for maintaining menstrual health. Let's explore some key aspects:

normal period blood clots vs. abnormal clots

As we mentioned earlier, normal period blood clots are typically small in size and occur throughout menstruation. These clots form as a result of the natural shedding of the uterine lining and are generally harmless. However, when blood clots become unusually large or occur frequently, it may indicate an underlying issue.

potential causes of abnormal menstrual clots

  1. uterine fibroids: Uterine fibroids are non-cancerous growths that develop within the uterine wall. These growths can vary in size and number and may cause heavy, painful periods accompanied by large blood clots. Individuals with uterine fibroids may experience irregular menstrual cycles and excessive bleeding.

  1. polycystic ovary syndrome (pcos): PCOS is a hormonal disorder characterized by imbalances in estrogen, progesterone, and testosterone levels. Women with PCOS may experience irregular periods, heavy bleeding, and clot formation due to disrupted ovulation and hormonal fluctuations.

  1. endometrial tissue abnormalities: Conditions such as endometriosis, where endometrial tissue grows outside the uterus, or adenomyosis, where it develops into the uterine wall, can lead to abnormal menstrual bleeding and clotting. These conditions may cause intense pelvic pain, heavy periods, and the passage of large clots.

  1. uterine polyps: Uterine polyps are small, benign growths that develop in the uterus lining. While often asymptomatic, they can cause irregular menstrual bleeding, including the presence of abnormal clots. Individuals with uterine polyps may experience spotting between periods and prolonged menstrual bleeding.

seeking medical attention

Experiencing abnormal menstrual clots, along with symptoms such as excessive bleeding, severe pelvic pain, or irregular periods, warrants medical evaluation. Conditions such as abnormal uterine bleeding, excessive bleeding, and pelvic disorders can significantly impact reproductive and sexual health. Consulting with a trusted gynecologist can help diagnose underlying issues and develop a tailored treatment plan. They can help you with solutions on how to stop period blood clots if need be.

menstrual health is wealth

Understanding the potential causes of blood clots during periods can help you navigate your menstrual cycle more confidently. By addressing hormonal fluctuations and considering lifestyle factors, individuals can manage blood clot formation and prioritize their comfort and well-being during menstruation. With Thinx period-absorbing underwear handling blood clots similarly to a pad, you can feel assured that although the undies can't absorb the blood clot itself, they will absorb the surrounding moisture so you will not feel damp, wet, or uncomfortable. Embrace your menstrual journey with confidence and comfort, knowing that Thinx has you covered.


Mayo Clinic. What You Need to Know about Blood Clots and Menstruation. 

Healthline. What Causes Menstrual Clots and Are My Clots Normal? 

Cleveland Clinic. Period Blood Clots: Should You Be Concerned?

by Team Thinx

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