What causes IVF hemorrhage?
IVF is an embryo fertilized and cultivated in the laboratory through assisted reproductive technology (ART), and then implanted into the mother's uterus for pregnancy. However, sometimes IVF babies may bleed during implantation. This bleeding can be caused by bleeding of endometrium, shedding of blastocyst, or stimulation of uterus by implantation of catheter. The causes of IVF hemorrhage will be described in detail in the following four aspects: endometrial vascular supply, blastocyst membrane rupture, implantation process and individual differences.
1. Endometrial vascular supply
A common cause of bleeding during IVF implantation is the vascular supply problem of endometrium. Endometrium is the place where pregnancy takes place, and its vascular supply is to support the growth and development of the embryo. However, during implantation, the embryo may exert pressure on endometrial blood vessels, leading to vascular damage and bleeding.
In addition, the vascular supply of the endometrium may be different for each woman. Some people have rich endometrial blood vessels and are prone to bleeding. Therefore, individual differences are also one of the causes of IVF hemorrhage.
2. Burst of blastocyst membrane
The blastocyst membrane is the membrane that wraps the embryo during the development of the embryo, playing a protective role. However, during implantation, the blastocyst membrane may rupture and cause bleeding. This is usually due to stimulation of the blastocyst membrane or excessive pressure resulting in rupture.
Hemorrhage caused by rupture of blastocyst membrane is usually mild and will not have a significant impact on the health of IVF. In most cases, the bleeding will stop within a few days.
3. Implantation process
The process of IVF implantation may cause endometrial trauma and bleeding. During this process, the doctor will use a catheter to implant the embryo into the uterus. However, the insertion of a catheter may stimulate the endometrium, leading to bleeding.
In addition, the choice of implantation site during implantation may also affect whether bleeding occurs. If the implantation site is located in a vulnerable vascular area, the risk of bleeding will increase.
4. Individual differences
The occurrence of IVF hemorrhage may also be related to individual differences. Every woman has different endometrial conditions, vascular supply, blastocyst quality, etc., which leads to different bleeding risks during IVF implantation.
In addition, individual differences may also be related to the operation level of implantation technology and the technical level of hospital equipment. In some hospitals with poor technical level, the risk of IVF bleeding may increase.
Summary
The main causes of IVF hemorrhage include endometrial vascular supply problems, blastocyst membrane rupture, endometrial trauma during implantation and individual differences. Endometrial vascular supply problems and blastocyst membrane rupture are common causes of bleeding, and implantation process and individual differences may also lead to increased risk of IVF bleeding. In order to reduce the risk of IVF hemorrhage, doctors and technicians should operate strictly and reasonably according to individual characteristics. In addition, choosing a hospital with high professional level and advanced equipment is also an important measure to reduce the risk of bleeding.
