Can I donate blood during my menstrual period?

Nov 22, 2021 Source: Cainiu Health
Dr. Xu Yongqian
Introduction
Menstruation is a contraindication for blood donation. Menstruation involves the regular, physiological shedding of the endometrium. During this period, the body’s resistance and immune function decline, the endocrine system is affected, and physiological blood loss occurs. Since menstruation itself represents a relatively weakened physiological state, donating blood at this time would amount to “adding deficiency to deficiency.”

Many women regularly donate blood, but sometimes they wish to donate during their menstrual period. At such times, many women are uncertain whether donation is permissible and worry that donating blood during menstruation may adversely affect their health. During menstruation, a woman’s body is in a relatively weakened state; if this is not taken seriously, various health issues may arise. So—can women donate blood while menstruating? Below, we address this question.

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Can women donate blood during menstruation?

No, women should not donate blood during menstruation. Menstruation involves the regular, physiological shedding of the uterine lining. During this time, the body’s resistance and immune function decline, endocrine balance is disrupted, and physiological anemia occurs due to blood loss. Since menstruation itself represents a period of relative physical weakness, donating blood at this time would compound that weakness—essentially “weakness upon weakness.” If a woman donates blood during her period, her blood cells may recover more slowly, further compromising physical stamina and increasing susceptibility to fatigue and illness. Therefore, women are strongly advised to avoid donating blood during menstruation.

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Knowledge Extension: What to Eat After Donating Blood

1. Protein-Rich Foods

Donors should consume at least 50–60 grams of protein daily to meet their body’s needs. Good sources include lean meats, beef, eggs, milk, pork liver, and soy products. However, it is unnecessary—and potentially counterproductive—to overeat protein immediately after donation; instead, moderate, balanced intake is recommended.

2. Iron-Rich Foods

Consuming iron-rich foods—such as shiitake mushrooms, red dates (jujubes), animal livers, sesame paste, black fungus, and longan fruit—can accelerate blood cell regeneration and promote the production of new blood. However, donors should avoid tea for approximately one month following donation, as tannins in tea can inhibit iron absorption and delay hematopoietic recovery.

The above provides an overview of whether blood donation is advisable during menstruation. We hope this information is helpful to you.