• Dr. Jones

How to distinguish menstruation and implantation bleeding?

The process between embryo transfer and confirmation of pregnancy is critical, especially if the woman has been struggling with infertility. After IVF treatment, it takes about two weeks to be confirmed. 2 weeks waiting has plunged women into a sense of upset. Every little twitch or new symptom makes her feel excited because she believes those imply she is pregnant.

Although implantation bleeding is common, bleeding may be anxiety for women trying to conceive. They would think it is the menstruation which indicates that the hope of pregnancy is over. Therefore, it is important for women to understand the difference between a menstrual period and implantation bleeding.

Understanding gestation implantation bleeding

Implantation bleeding is the slight bleeding after the embryo is implanted into women’s uterine. One in every three pregnant women, so this is a very common situation. It changes the acknowledge that vaginal bleeding is always dangerous in pregnancy. In fact, implantation bleeding is a good indication that women are about to become pregnant.

The implantation process is a natural miracle. During natural conception, the mature egg meets and fertilizes with sperm to form an embryo. The embryo travels down the fallopian tube and reaches the uterine cavity. Similarly, embryo transfer is also performed for women undergoing IVF treatment. During the IVF treatment cycle, the mature embryo is transferred from the vagina to the uterus through a catheter. In either case, the doctor should implant an embryo into the endometrium or uterine to make women get pregnant. When the embryo enters the endometrium, it will destroy blood vessels and cause slight bleeding.

How to distinguish between implantation bleeding and menstrual period

Women who are planning to have a baby may be worried when they find vaginal bleeding after transplantation. Understanding the difference between implantation bleeding and menstrual period for them can be calmer. The following signals that American IVF experts advise women to pay attention to:

  • Color: The color of the discharge may be the main indicator of the type of bleeding. People who take performed IVF treatment must pay attention to the color of the bleeding. The color of implant bleeding varies from pink to brown and is easily distinguished from bright red bleeding during menstruation. Every woman can easily tell the difference because it is different from the color of her bleeding during normal periods.


  • Consistency: Another parameter used to distinguish is the consistency of bleeding. Although the typical menstrual cycle has large flow, the bleeding during implantation is more like the appearance of spots.


  • Length: Women have an average menstrual period of four to seven days. Usually, it starts with mild bleeding and becomes heavier, then disappear gradually, stop completely. On the other hand, as the flow rate changes from spotty to constant, the duration of implantation bleeding is shorter. Depending on the situation, it may extend from a few hours to several days. Compared with subsequent pregnancy, implantation bleeding during the first pregnancy lasts longer and more severe.


  • Time: The time of bleeding is another way to distinguish. A typical menstrual cycle lasts 28 to 35 days. On the other hand, implantation bleeding occurs a few days before the expected period.

Certain symptoms associated with implantation bleeding may also help distinguish it. IVF experts remind women to be aware of it so that they can recognize the positive results as soon as possible. These include mild cramps, headaches, mood swings as well as nausea, and breast tenderness. These are the first identifiable signs of pregnancy and ensure that the bleeding is a result of implantation and not a normal menstrual period. The best way to find out the reason for bleeding is to take a pregnancy test. Only after the pregnancy test is positive, the woman can truly be sure that the bleeding is due to embryo implantation rather than menstruation.

When to pay special attention

In the short term, when a woman is pregnant, a small amount of bleeding should have not been shocking. It may occur due to embryo implantation, cervical irritation, and vaginal infection. But experts suggest that in some cases it needs to be taken seriously. Should pay attention to prolonged or heavy bleeding, because it may give rise to serious complications, such as ectopic pregnancy and miscarriage. These complications are indicated by warning symptoms such as severe pain and abdominal cramps, nausea, and dizziness.

Implantation bleeding is not conclusive evidence of pregnancy, but it is a positive sign. Women undergoing IVF treatment need to be more careful and should consult their experts at the beginning. The expert will decide the best time for the pregnancy test and eliminate the possibility of complications.



Source:https://zhuanlan.zhihu.com/p/93183752

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