For couples who want to get pregnant, they will choose sperm and egg examination.Check whether the sperm vitality and egg vitality are normal, so as to determine whether it can be conceived normally.So, what are the sperm vitality detection methods?
Sperm vitality detection method
1. Sperm color: The color of normal semen is transparent and gray. If the abstinence is long, it can be pale yellow. When the reproductive tract is inflamed, it is yellow or even blood in the semen.
2, semen volume: 2ml to 6ml, but affected by the exclusion frequency and number of times.The amount of semen is less than 1ml/time is called the elimination of semen, and the amount of semen is more than 6ml/time.
3. Metal semen liquefaction: The gel state when the semen is rolled out of the body, and it will cause liquid state for 5 to 30 minutes. This process is called liquefaction.The liquefaction of semen must have a series of white hydrolytic enzymes. The viscous and non -liquefied semen is common in patients with fire gland or seminal vesicular diseases.The semen is weakly alkaline, and the pH value is between 7.2 and 7.8, such as pH<7则偏酸，pH>8 is alkaline, which will be limited to sperm results.
4. Sperm density: Sperm density refers to the number of sperm contained in each ml sperm. The number of sperm in the normal semen is more than 20 million. If less than 20 million/ml belongs to young sperm, it will affect fertility.
What should I pay attention to before sperm vitality?
1. Before the specimen is collected, abstinence should be abstained at least 48 hours, but not more than 7 days.In order to reduce the fluctuation of semen analysis results, the number of days of abstinence should be as constant as possible.Each semen analysis report should be stated that the patient's name, abstinence time, the date and time of specimen collection, whether the specimen collection is complete, and the specimen from collected to analysis time interval.
2. The preliminary inspection should do two semen analysis. The interval between the two semen collection should be greater than 7 days, but it cannot exceed 3 weeks.If the results of the two times have obvious differences, the specimen should be taken for the third analysis.
3. The collection of specimens is best to be carried out separately in the spermatic room near the laboratory.Otherwise, it should be sent to the laboratory within 1 hour after collection.
4. It is best to use masturbation to take semen, and collect semen in wide -mouth glass or plastic containers with non -toxic effects on sperm.The temperature should be kept at 20 ~ 40 ° C to avoid reducing sperm vitality.If you want to do microbiological examinations, patients should urinate and wash their hands and penis first, and collect them with sterile containers.
5. If it is difficult to get essence of masturbation, semen can be collected with a special condom.Because daily latex condoms affect the survival of the sperm, it cannot be used to collect semen.Sexual interruptions cannot be used to collect semen, because the initial part of ejaculation may be lost, and this part of the sperm density is often the highest.Moreover, the specimen will be contaminated by bacteria and microorganisms; at the same time, acidic vaginal secretions will adversely affect sperm vitality.
6, semen collection must be complete, incomplete semen should not be analyzed.
7. During the process of transporting to the laboratory, the specimen is above 20 ° C, but cannot exceed 40 ° C.
8. The container that collects semen must indicate the name and time of the name of the subject (and/or ID card) and the specimen collection.
(Editor in charge: Zheng Guisheng)
