Difference Between Menstrual Blood and Regular Blood

Thekey differencebetween menstrual blood and regular blood is thatmenstrual blood contains vaginal secretion and theendometrial子宫细胞虽然常规血液高度充氧，并且具有高浓度血红蛋白,RBC和WBC。

In forensic, blood fluids provide valuable evidence. In some instances, especially in the investigation of rape cases, it is necessary to differentiate normal blood from menstrual blood. Easy differentiation can be done based on the composition of each blood. Hemoglobin content, RBC and WBC count can be easily analyzed and compared between menstrual and normal blood. The concentrations of iron, hemoglobin RBC and WBC are less in menstrual blood than in regular blood. Moreover, menstrual blood contains dead and no longer functional tissues.

内容

1.Overview and Key Difference
2.什么是月经
3.什么是常规的血液
4.Similarities Between Menstrual Blood and Regular Blood
5.Side by Side Comparison – Menstrual Blood vs Regular Blood in Tabular Form
6.概括

什么是月经血？

Menstrual blood or menstrual fluid is the regular discharge of blood and mucosal tissue from the inner lining of theuterusthrough the vagina. It is a complex biological fluid comprised of blood, vaginal secretion and endometrial cells of the uterine.

When compared to regular blood, menstrual blood is darker and not highly oxygenated. In fact, menstrual blood is a waste product. It contains dead and non-functional tissue parts. Furthermore, menstrual blood has low concentrations of iron, hemoglobin, WBC and RBC compared to regular blood. Discharge of menstrual blood takes place 2 to 7 days. Menstruation happens in every month, with an average of 28 days.

什么是常规的血液?

Regular blood is the fluid circulating in our body via blood vessels. It delivers oxygen and nutrition to body parts and transports waste of the metabolic processes away from the cells. There are blood cells suspended in blood plasma. Therefore, blood has red blood cells, white blood cells, platelets and blood plasma.

From the total volume of blood, red blood cells account for 45% while the plasma account for about 54.3% and white cells account for about 0.7%. It also has glucose and other dissolved nutrients. The average density of blood is around 1060 kg/m³。此外，血液具有凝血因素或元素。常规血液的pH值为7.2。一个普通人有5升血液。

What are the Similarities Between Menstrual Blood and Regular Blood?

• Menstrual blood and regular blood are biological fluids that are red in colour.
• They contain hemoglobin, red blood cells, white blood cells, iron, proteins, etc.
• Both menstrual blood and regular blood have the same pH.

月经血和常规血液有什么区别？

月经是在时期排出的流体。相反，常规血液是我们循环系统中流动的流体。月经血液中含有宫颈粘液，阴道分泌物和子宫内膜组织，与常规血液不同，普通血液中含有红细胞，白细胞，血小板和血浆高浓度。因此，这是月经血液和常规血液之间的关键区别。此外，与月经血液不同，常规血液是高度氧合的。

The below infographic tabulates more comparisons related to the difference between menstrual blood and regular blood.

摘要 - 月经血与常规血液

Menstrual blood and regular blood are two types of body fluids. The fluid discharged during menstruation is known as menstrual blood. It is mixed with cervical mucus, vaginal secretions, endometrial tissue, and other waste. Regular blood is the body fluid that circulates via blood vessels. It transports nutrients, oxygen, carbon dioxide and metabolic wastes. Menstrual blood differs from regular blood in its composition. Menstrual blood contains low concentrations of RBC, WBC, hemoglobin, proteins than regular blood. It also does not have coagulation elements. Thus, this is the summary of the difference between menstrual blood and regular blood.

Reference:

1.“关于月经血的全部 - PLIM，保护液体薰衣草”。PLIM，《保护液》，2020年，Available here。
2. “Blood | Definition, Composition, & Functions”. Encyclopedia Britannica, 2020,Available here。

Image Courtesy:

1. “MenstrualCycle” By Chris 73 / Wikimedia Commons(CC BY-SA 3.0)viaCommons Wikimedia
2. “HD wallpaper: blood cells illustration, red, medical, medicine, anatomy, health” (CC0) viaWallpaper Flare