During the examination and treatment of male infertility, doctors sometimes ask the man to separate the semen ejaculated in the first three ejaculations from the semen ejaculated later when collecting semen. Why is this?
This is first of all a diagnostic consideration. During ejaculation, the semen ejaculated forward and backward contains different secretions from the accessory glands. Therefore, through biochemical analysis of semen of each segment, the functional status of each accessory sex gland can be understood. Considering sperm quality, the concentration of sperm contained in semen discharged one after another is also different. Generally speaking, the sperm concentration in the semen that has just been ejaculated is higher, and the sperm motility and viability are also better, so the quality of this part of the semen is higher. However, some people discharge semen of high quality later. Therefore, it is necessary to collect semen in sections, check them separately, and select a part of semen with good quality for use.
For men with low sperm density, in order to increase the sperm density and increase the chance of conception, they can take the method of immediately pulling the penis out of the vagina after ejaculating the first part of semen during sexual intercourse to allow the second part of the semen to be discharged from the body. , so that the concentration of semen is not diluted. If the semen discharged after inspection is of high quality, because it is difficult to control ejaculation during sexual intercourse, the method of collecting semen in sections can be used, and the part of semen with good quality can be used for artificial insemination.
This article is provided by Baidu Reading and is excerpted from \”The Clear \”Conception\” Plan\” Author: Sun Jianqiu and Xie Yingbiao