Will the blood routine examination during menstruation be inaccurate

The blood routine results of menstrual physical examination may have deviations, but in most cases, the impact is limited. If it is necessary to test indicators such as hemoglobin or platelets, it is recommended to avoid the menstrual period. Fluctuations in hormone levels during menstruation in women may lead to abnormal blood indicators. Changes in estrogen and progesterone can indirectly affect red blood cell production, and some women may experience a slight decrease in hemoglobin. Menstrual bleeding can lead to a decrease in ferritin levels, but it usually recovers on its own within 24 hours. Platelet count may experience brief fluctuations due to changes in menstrual coagulation function, but generally does not exceed the normal reference range. White blood cell count is usually not affected by menstruation, but the presence of dysmenorrhea or menstrual infections may cause an increase in the value. The erythrocyte sedimentation rate index may slightly accelerate during menstruation due to physiological inflammatory reactions. When the menstrual flow exceeds 80 milliliters or there are gynecological diseases such as adenomyosis, the probability of abnormal blood routine is significantly increased. Severe anemia patients may experience a decrease in hemoglobin levels exceeding 20 grams per liter during their menstrual period. When suffering from blood system diseases such as thrombocytopenia, menstrual bleeding may lead to further decrease in platelet count. Long term use of anticoagulant drugs results in more significant changes in coagulation function during menstruation. When these special circumstances exist, it is recommended to recheck the blood routine three days after the end of the menstrual period. Before the physical examination, the doctor should be informed of the menstrual cycle situation, and if necessary, auxiliary tests such as serum iron and transferrin can be added. Pay attention to supplementing animal liver, duck blood, and other foods rich in iron in daily life, and avoid vigorous exercise during menstruation. If significant differences in blood routine between menstrual and non menstrual periods are found through multiple tests, potential diseases such as uterine fibroids or coagulation dysfunction should be investigated.