Can women donate blood during their menstrual period?

Women are generally advised not to donate blood during menstruation, as menstrual bleeding can lead to blood loss and may be accompanied by symptoms such as nausea and vomiting. Donating blood during this time could result in excessive blood loss and exacerbate uterine weakness. Additionally, blood donation during menstruation may reduce menstrual flow, and since the body is relatively weakened during this period, the risk of developing illnesses after donation is comparatively higher.