Reasons why sperm and egg do not combine

I believe everyone should know about the origin of humans. Humans are mainly developed from fertilized eggs. Fertilized eggs are mainly formed by the combination of egg and sperm. Not all sperm and eggs will combine when they meet. Women who are preparing for pregnancy will find that the sperm and egg in their bodies will not combine when they meet. So what are the causes of egg and sperm not combining?

1. The fertilized egg has defects

This situation is because although the egg is fertilized successfully, the fertilized egg itself has certain defects. For example, there may be some congenital problems with the egg cell or sperm, or something unexpected happens during the combination process, which causes the fertilized egg to be unable to take root in the endometrium, which is the so-called implantation failure.

2Ovarian luteal insufficiency

This condition is generally caused by insufficient progesterone secretion in women. Luteal insufficiency can directly lead to abnormalities in the endometrium. The implantation site of the fertilized egg is in the endometrium. If there is a problem, the probability of implantation failure will increase a lot.

3. Women have uterine problems

Generally speaking, this problem is divided into congenital and acquired, such as uterine dysplasia, submucosal fibroids, endometrial polyps, intrauterine adhesions, endometrial tuberculosis, etc. If these problems exist, the fertilized egg will certainly not be able to implant successfully. If you are diagnosed with these problems with your uterus, you must first go to the hospital for observation and treatment.

4Immune problems lead to implantation failure

There are generally two types of so-called immune problems. One is alloimmunity, that is, sperm, seminal plasma or fertilized egg are antigenic substances. After being absorbed by the vaginal and uterine epithelium, they produce antibody substances through immune reaction, which prevents the sperm and egg from combining or the fertilized egg from implanting.

Autoimmunity: It is believed that infertile female partners have zona pellucida autoantibodies in their serum, which react with the zona pellucida to prevent sperm from penetrating the egg, thus preventing fertilization.

5Psychological and spiritual reasons

If female friends are in a state of anxiety, tension and depression for a long time, it will greatly affect their health. Endocrine disorders can easily interfere with conception and prevent the fertilized egg from implanting successfully.

When the sperm and egg combine successfully and implant successfully, the symptoms of pregnancy can be detected using a test strip. Generally at this time, expectant mothers' body temperature will drop to a certain extent, and some people may bleed. People with keen senses may feel abdominal pain, some people may have complications from a cold, and most people will have swelling and pain in their breasts. When these situations occur, expectant mothers should step up their preparations.