All sperm donor volunteers have to undergo initial screening after signing the informed consent form. After the initial screening, they have to undergo further examination and meet the health examination standards before they can donate sperm.
The process of sperm donation:
1. Medical history screening
1. Past medical history
Sperm donors can not have systemic diseases and serious organic disorders, such as heart disease, diabetes, tuberculosis, liver disease, genitourinary diseases, hematologic disorders, hypertension, mental illnesses and leprosy.
2, personal life history
Sperm donors should have no long-term exposure to radiation and toxic substances, no drug abuse, alcoholism, smoking and other bad habits, smelting history.
3. History of sexually transmitted diseases
The sperm donor should be asked about the history of sexually transmitted diseases and sexual partners in the past six months, and whether he/she has more than one sexual partner, so as to exclude the high-risk group of sexually transmitted diseases. Sperm donors should have no history of sexually transmitted diseases, such as gonorrhea, syphilis, condyloma acuminatum, molluscum contagiosum, genital herpes, AIDS, hepatitis B and C, and exclude sexually transmitted diseases of sexual partners, vaginal trichomoniasis and other disorders.
Two, family survey
1, chromosomal diseases: exclude all types of chromosomal diseases
2, monogenic genetic diseases: exclude albinism, hemoglobin abnormalities, hemophilia, hereditary hypercholesterolemia, neurofibromatosis, tuberous sclerosis, β-thalassemia, cystic fibrosis, familial dementia, glucose-6-phosphate dehydrogenase deficiency, congenital deafness, and so on. deficiency, congenital deafness, Prader-willi syndrome, and hereditary optic nerve atrophy.
3, polygenic genetic diseases: exclude cleft lip, cleft palate, malformed feet, congenital hip dislocation, congenital heart disease, hypospadias, spina bifida, asthma, epilepsy, juvenile diabetes mellitus, psychiatric disorders, rheumatoid arthritis, severe hypertension, severe refractive errors and other diseases.
Three, physical examination
General physical examination: the sperm donor must be in good health, no signs of deformity, heart, lungs, liver, spleen and other checks are not abnormal, and at the same time, should pay attention to the limbs with or without multiple traces of intravenous injection.
Reproductive system examination: the sperm donor must have a well-developed reproductive system with no deformities, and no disorders such as reproductive system ulcers, urethral secretions and reproductive system warts.
Fourth, laboratory examination
1, chromosome examination: sperm donor chromosome routine karyotype purchase analysis must be normal, excluding chromosomal abnormalities in the sperm donor.
2, sexually transmitted diseases: sperm donor hepatitis B and C and other tests are normal. The sperm donor is negative for syphilis, gonorrhea and AIDS. Semen should be routinely cultured for bacterial infection to exclude pathogenic bacteria.
3, semen routine analysis and quality requirements of sperm supply, the sperm donor semen should be routinely checked. Abstinence for 4~7 days is required before sperm retrieval.
Expanded:
According to the data from the sperm bank, the quality of semen of male sperm donors has decreased in recent years, and the vitality of sperm has also decreased, most likely because modern people live in a faster pace of life, and life pressure is also relatively large, and then some young people, living habits, and the life routine is not very good, which leads to a decline in the quality of semen.
Basic standards for external sperm supply:
Frozen semen used for external sperm supply for donor insemination or in vitro fertilization - embryo transfer, the forward-moving spermatozoa (grade a+b) after freeze recovery is not less than 40%, and the total number of forward-moving spermatozoa in each semen shall not be less than 12x10?
Frozen semen used for donor insemination or in vitro fertilization - embryo transfer is not less than 40%, and the total number of forward-moving spermatozoa in each semen is not less than 12x10?
Ministry of Health strictly prohibits commercialization and industrialization of human sperm bank:
The Ministry of Health pointed out that assisted human reproduction technology and human sperm bank belong to the restricted application of high-tech health technology, and the provincial health administrative departments should take practical measures to strictly prohibit the commercialization and industrialization of this technology.
The Ministry of Health issued a notice emphasizing that all areas should be based on the jurisdiction of the health development plan, the population structure and the number of people of childbearing age, the incidence of infertility patients and the level of economic development, as well as the level of health care institutions, the nature of the level of technology, equipment and other conditions, to develop assisted human reproduction technology and human sperm bank set up planning, strict control of the number of new institutions to carry out this technology.
Baidu Encyclopedia - Sperm Donation
People's Daily Online - Analyzing the whole process of sperm donation
Baidu Encyclopedia - Sperm Banks