Artificial insemination
Artificial insemination is an assisted reproductive technique in which male semen is injected into the female reproductive tract through a non-coital method in anticipation of a natural union of sperm and egg to assist in conception. Intrauterine insemination has been used clinically for many years, and more than 200 years ago John Hunter used a syringe to inject semen from a man with hypospadias into his wife’s vagina to obtain a normal pregnancy. It was not until the mid-1970s that this method became widely used. It has now become the treatment of choice for infertile women with patent fallopian tubes.
Principles of Artificial Insemination
The principle of artificial insemination is to reduce the factors that hinder the advance of sperm and to bring concentrated, highly viable, morphologically normal sperm as close as possible to the egg, thus facilitating conception. This requires three conditions.
1. normal ovulation.
2. a normal sperm count of a certain amount.
3. a patent fallopian tube (the fallopian tube is where the sperm and egg meet).
Who needs artificial insemination
Artificial insemination is divided into artificial insemination with husband sperm (AIH) and artificial insemination by donor sperm (AID) according to the source of semen.
The indications are different for different types of artificial insemination.
(a) Husband sperm artificial insemination.
1, male ejaculation disorders: such as impotence, premature ejaculation, non-ejaculation, retrograde ejaculation, etc.
2, male genital malformation: hypospadias, penile flexion malformation, etc.
3, male oligospermia, abnormal semen liquefaction.
4, female cervical mucus secretion abnormalities.
5.Female genital tract anomalies.
6.Immune infertility: anti-sperm antibodies, etc.
7. Infertility of unknown cause.
(II) Artificial insemination by sperm donation.
1. irreversible azoospermia, dead sperm
2. severe oligospermia, hypospermia and teratospermia
3, male partner with chromosomal abnormalities or serious hereditary diseases that are unsuitable for fertility.
4, severe RH blood type incompatibility.