The Causes of Infertility Caused by Old Male Fertility
Male elder childbearing refers to the childbearing problem caused by older men when they marry later or remarry. Due to the biological differences, the elderly male fertility is often accompanied by a series of infertility problems. The following will elaborate on the causes of infertility caused by male elderly childbearing from four aspects.
Decreased sperm quality
With the increase of age, the sperm quality of men gradually declined. The study found that the quality of male sperm began to decline significantly after the age of 30, including quantity, vitality and morphological traits. The decrease of sperm quantity directly leads to the decrease of pregnancy opportunity, while the decrease of motility and morphological characteristics affects the swimming ability and fertilization ability of sperm.
In addition, male sperm DNA damage also increases with age. DNA damage can lead to incorrect or incomplete genetic information of sperm, thus affecting the development of embryos and the success rate of pregnancy.
For the infertility problem caused by the decline of sperm quality, men can delay the decline of sperm quality by improving their living habits, maintaining a healthy lifestyle, reasonable diet and effective management of stress.
Decreased sexual function
The decline of sexual function is often accompanied by the aging of male fertility. With the growth of age, male sexual desire decline, erectile dysfunction and other problems become more common. These problems directly affect normal sexual behavior and sperm ejaculation. Spermatozoa cannot enter the female vagina normally, resulting in infertility.
In addition, with the increase of age, the testicular function of men will gradually decline, resulting in a decline in testosterone levels. Testosterone is an important factor to maintain spermatogenesis and growth, and its reduction will directly affect the quantity and quality of sperm.
In view of the infertility problem caused by the decline of sexual function, men can carry out regular physical examination, timely discover and treat diseases related to sexual function, and actively adjust their mental state to maintain good sexual hygiene habits.
Increased risk of genetic diseases
The risk of genetic diseases is increased by the old age of male fertility. With the increase of age, the probability of carrying genetic variation or mutation in male sperm will also increase. These genetic variations or mutations may cause offspring to suffer from hereditary diseases, such as congenital heart disease, hereditary tumors, etc.
Some genetic diseases may have no obvious impact on fertility, but will bring health problems to future generations. Therefore, male elderly child-bearing people should actively carry out genetic counseling and genetic disease screening during family planning to increase the health security of their offspring.
Increased sperm meiosis subtype
The aging of male fertility will also lead to the increase of sperm meiosis subtypes. Sperm meiotic subtypes refer to abnormal sperm chromosome numbers, such as polyploid and haploid. These sperm subtractive subtypes are prone to abnormality during fertilization, which leads to embryo implantation failure and unstable pregnancy.
The increase of sperm meiosis subtypes is mainly due to the decrease of genetic repair ability during spermatogenesis. With the increase of age, the DNA repair ability in the process of male spermatogenesis gradually weakens, leading to the increase of sperm reduced subtypes.
Faced with the problem of infertility caused by sperm subtractive subtypes, men can screen and select healthy sperm for artificial insemination and assisted reproductive technology through semen examination and minimally invasive technology.
To sum up, the main reasons for infertility caused by aging male fertility include decreased sperm quality, decreased sexual function, increased risk of genetic diseases and increased sperm meiosis subtypes. For the male elderly child-bearing, we should pay attention to the above problems and actively take measures to prevent and treat them, so as to improve the fertility success rate.
