The Hidden Truth: Underestimation of Menstrual Blood Loss

The Hidden Truth: Underestimation of Menstrual Blood Loss

Menstruation is a natural and regular occurrence in the lives of individuals with uteri. While many people experience this monthly event, it's surprising how little is understood about it, particularly when it comes to the amount of blood loss. For decades, the measurement and management of menstrual blood loss have been underestimated, primarily due to the limitations of modern menstrual products in providing an accurate assessment. In this blog, we will explore why the underestimation of menstrual blood loss matters, backed by scientific evidence from studies, articles, and journals.

Understanding Heavy Menstrual Bleeding (HMB)

Heavy Menstrual Bleeding (HMB) is a medical condition characterized by excessive menstrual blood loss. It affects millions of individuals worldwide, often leading to physical discomfort, anemia, and a diminished quality of life. Diagnosing and treating HMB is crucial to prevent these adverse effects.

The Limitations of Modern Menstrual Products

Most individuals rely on modern menstrual products such as tampons, pads, and menstrual cups to manage their periods. While these products provide comfort and convenience, they have limitations when it comes to accurately measuring blood loss:

1. Absorption Capacity: Menstrual products are designed to absorb blood. However, they can only hold a certain volume of liquid before leakage occurs, leading to frequent changes. This means that if an individual experiences heavy bleeding, they may not be able to accurately gauge the total blood loss.

2. Clotting and Tissue: Menstrual blood isn't just liquid; it also contains clots and uterine tissue. These components can affect the estimation of blood loss as they may not be fully absorbed by the products.

Scientific Evidence Supporting Underestimation

Numerous studies have shed light on this issue:

  1. The Menorrhagia Impact Questionnaire (MIQ): A study published in the Journal of Women's Health assessed the impact of HMB on daily life. It found that women with HMB reported significantly higher MIQ scores, highlighting the severity of their condition. The study emphasized the importance of accurate diagnosis and management.

  2. Comparison of Menstrual Products: Research conducted by the British Journal of General Practice compared menstrual products' effectiveness in measuring blood loss. The study concluded that these products can indeed underestimate the amount of blood lost, especially in cases of HMB.

Why Does This Matter?

Accurate measurement of menstrual blood loss is vital for several reasons:

1. Early Diagnosis: Underestimation can lead to delayed diagnosis of conditions like HMB. Early detection is crucial for effective management and preventing complications.

2. Treatment Decisions: Incorrectly assessing blood loss may result in inappropriate treatment choices. Individuals with HMB may not receive the necessary medical interventions, leading to prolonged suffering.

3. Quality of Life: HMB can significantly impact a person's daily life. Accurate measurement ensures that those affected receive the support and care they need to maintain their quality of life.

The Sherpax Solution

Sherpax understands the importance of accurate menstrual blood loss measurement and offers a sustainable solution. Our cloth pads, made from high-quality materials, provide not only comfort and absorbency but also a clear advantage when it comes to understanding your menstrual flow. Unlike disposable products, Sherpax cloth pads allow you to gauge your blood loss more accurately.

Accurate Measurement: With Sherpax cloth pads, you have a better visual indicator of your menstrual flow, which can be valuable information for your health. 

Sherpax cloth pads not only offer comfort and sustainability but also a clearer perspective on your menstrual flow. By making the switch to Sherpax, you're taking a step towards better menstrual health awareness and more accurate measurement.


The underestimation of menstrual blood loss is a critical issue that affects many individuals. Relying solely on modern menstrual products may not provide an accurate picture of blood loss, particularly in cases of HMB. Recognizing this limitation is essential for early diagnosis, effective treatment, and an improved quality of life for those who experience heavy menstrual bleeding. It's time to break the silence and ensure that menstrual health is given the attention and understanding it deserves.

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