Period blood is a complex mixture of several components. It's not just blood; it also contains other substances shed from the body during menstruation.
Key Components of Menstrual Blood:
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Blood: The most obvious component, this is blood from the broken-down uterine lining. The amount varies from person to person and throughout the menstrual cycle. Heavier flow days will have brighter red blood, while lighter days may see pink or brown discharge. (Source: NHS, Verywell Health)
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Endometrial Tissue: This is the lining of the uterus that sheds during menstruation. It's composed of cells and fluids from the late secretory phase of the uterine endometrial lining. (Source: PMC, Cleveland Clinic, The Royal Women's Hospital)
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Vaginal Secretions: These fluids are a normal part of the vaginal environment and mix with the menstrual blood. (Source: PMC, University of Texas)
Variations in Period Blood:
The color and consistency of period blood can vary, depending on factors including the stage of menstruation and individual health. Changes in color, from bright red to dark brown or even other hues, are often normal variations. However, significant or persistent changes should be discussed with a healthcare professional. (Source: Medical News Today)
The composition of menstrual blood reflects the intricate biological processes involved in the menstrual cycle and reproductive health.