Factors affecting the success of pregnancy
Test tube baby is an assisted reproductive technology that combines sperm and egg in a test tube, and then implants the fertilized egg into the mother's uterus. However, if the male sperm vitality is low, it will affect the success of pregnancy. The following is a detailed description of the impact on the success of pregnancy from four aspects: sperm number, sperm morphology, sperm motility and semen quality.
Number of sperm
The number of sperm refers to the total number of sperm in semen. The low number of male sperm may reduce the success rate of IVF. The number of normal sperm should exceed 100 million per milliliter of semen. If the number is insufficient, the chance of fertilized eggs combining with eggs will be reduced, thus affecting pregnancy.
The reason for the insufficient number of sperm may be the spermatogenesis disorder or sperm discharge disorder. For example, testicular injury, testicular torsion, poor blood circulation and other factors will lead to a decrease in the number of sperm. In addition, lifestyle factors such as smoking, drinking and bad eating habits may also affect the sperm count.
In order to improve the success rate, if the number of sperm is found to be low, it can be extracted and cryopreserved in relevant hospitals for standby.
Sperm morphology
The shape of sperm refers to its shape and size. Normal sperm should present a standard shape, with a complete head and a curved tail. Abnormal sperm morphology may affect the ability to enter the egg, thus affecting pregnancy.
The causes of abnormal sperm morphology are usually testicular injury, chromosome abnormalities, etc. For example, testicular torsion, testicular injury or chromosomal abnormalities (such as Klinefelter syndrome) can lead to abnormal sperm morphology.
If abnormal sperm morphology is found, ICSI (single sperm injection) technology can be used to assist pregnancy and select healthy sperm for injection.
Sperm motility
The motility of sperm refers to the motility and swimming speed of sperm. Normal sperm should have good vitality and swimming speed, and be able to freely swim to the egg for fertilization. If sperm motility is insufficient, it will affect the chance of fertilization.
The lack of sperm motility is usually due to the dysfunction of reproductive organs such as seminal vesicles and prostate, or the presence of antisperm antibodies in semen. In addition, maintaining an unhealthy lifestyle for a long time, such as lack of exercise and bad eating habits, will also lead to decreased sperm motility.
If it is found that sperm motility is poor, it can be artificially controlled to inject sperm into the egg to improve the chance of pregnancy.
Semen quality
Semen quality refers to the liquid components in semen other than sperm. Poor semen quality may reduce the success rate of pregnancy. The main reason for poor semen quality is lifestyle factors, such as improper diet, low immunity, long-term exposure to environmental pollution, etc.
Poor semen quality may affect sperm quantity, morphology and motility. Therefore, it is very important to improve the lifestyle and maintain good eating habits for improving semen quality.
Summary
The low sperm motility of men will directly affect the success rate of IVF. The number of sperm, sperm morphology, sperm motility and semen quality are important factors affecting the success of pregnancy. If low sperm vitality is found, relevant hospitals can be selected for assisted reproductive technology, such as sperm extraction and cryopreservation, ICSI technology, etc. In addition, improving lifestyle and maintaining good eating habits also have a positive impact on the success rate of pregnancy.
