Does blood draw during menstruation have any effect?

For women, try not to have blood tests during the menstrual period. It is not because blood tests during the menstrual period will affect the condition of women's blood, but because women's hormone secretion during the menstrual period is higher than usual, which has a greater impact on the quality of the blood. Therefore, it will affect some data and indicators of the blood test, which will lead to some misjudgments. Therefore, try not to have blood tests during the menstrual period.

Does blood draw during menstruation have any effect?

Not recommended. Generally speaking, it is not recommended to have blood drawn for examination and testing during menstruation, because girls will secrete higher levels of estrogen than usual during menstruation, which may affect the quality of the blood and cause some indicators to deviate. In addition, there is blood loss during menstruation, so a routine blood test at this time may reveal symptoms of anemia. Of course, emergency situations that require blood tests are a different matter.

It should be noted that the common sex hormone test in clinical practice requires blood drawing on the 2nd or 3rd day of the menstrual period to reflect the basic levels of various indicators in the early follicular stage.

Does having a blood test during menstruation affect the test results?

There may be an impact. Simply put, menstruation is the phenomenon that hormonal changes cause the shedding and bleeding of the endometrium. Due to hormonal changes, some other changes will still occur in women's bodies. Drawing blood at this time may affect the test results, especially routine blood tests, four coagulation tests, liver function tests, etc.

Does blood drawing during menstruation have any effect on the body?

Won't. When drawing blood for testing, generally only 5-8 ml of blood is needed, which is equivalent to about one-tenth of the menstrual volume (each menstrual bleeding volume is 50-80 ml). The amount of blood collected is very small and will not affect your health.

However, the blood coagulation function will deteriorate during menstruation, and the needle hole will bleed easily. If blood is drawn, you need to press for a while longer.

What can't be checked during menstruation?

During menstruation, it is not suitable to have gynecological examinations and urine tests, blood tests, electrocardiograms and other examinations. Because some test results may be affected by hormones and may not reflect the true situation.

In addition, blood coagulation function will deteriorate during menstruation, and studies have shown that surgery during menstruation will increase bleeding. For the same reason, you should not undergo invasive examinations such as gastroscopy and colonoscopy that may cause bleeding during menstruation.

If it is not an emergency, it is recommended that women do not undergo medical examinations during their menstrual period (except for sex hormone tests). On the one hand, it may affect the test results, and on the other hand, it may cause dizziness and physical discomfort. It is better to go to the hospital for a comprehensive check-up after your menstrual period is over.