The identity of the egg-donor can remain anonymous, though this requirement is not obligatory. The donor also can express a natural desire to get acquainted with the recipient. The majority of doctors and lawyers recommend donors and recipients to sign a special contract or to carry out written matching process.
All egg-donors have an obligation and a responsibility to receive genetic counsling. The important factors of genetic counseling with regards to the egg donor procedure preparation are: age of the donor, presence of their own healthy child, absence of predilection for alcohol and drugs, absence of genetic anomalies. The donor's age should not exceed 35 years (after 35 years the probability occurrence of chromosomal anomalies considerably increases). Besides when taking the egg donor procedure preparation the woman-donor should pass inspection on presence of infectious diseases, have a consultation with therapist and gynecologist, and take all necessary analyses for definition of hormonal level and structure of blood.
After choice of the donor and necessary inspection with the help of hormonal therapy, and arrived synchronization menstrual cycles of donor and recipient, the cavity of the uterus of recipient should be prepared for implantation of an embryo. Under the certain circuit both women receive the appointed dozes of hormones. Synchronously with hormonal therapy ultrasonic of the uterus and ovaries is carried out. The level of hormones in blood is supervised.
Simultaneously with preparation of recipient to donor stimulation super-ovulation with the purpose of maturing several eggs in the ovaries is carried out.
For this purpose in the body of the donor, the hormonal egg donor procedure preparation begins at once. Development of follicles is supervised by daily monitoring of ultrasonic imagery. One of the most important and painful stages of egg donor procedure preparation is the puncture. Through walls of a vagina, with the help of special needle, follicles are pierced. Contents of these follicles are sucked away. The received egg in vitro is impregnated by sperm of husband or donor. Embryos are transferred to the uterus of the woman-recipient for the day of cycle. At about 15 days, preparations of progesterone are appointed at the positive test for pregnancy, this treatment continues till 12-14 weeks of pregnancy.
Major candidates on carrying out egg donor procedure are: women with absence of ovaries or their premature exhaustion, women with anomalies development of genitals (Shershevsky-Turner's syndrome, dysgenesis of gonads), hereditary diseases (myodystrophy of Dushenn, Õ-linked fish-skin disease).
Egg donor procedure preparation and the procedure itself in the majority of the countries of the world are considered to be rather expensive. However, the gratuitous donor service of eggs has become a more widespread phenomenon. Carrying out the procedure of IVF, very frequently the superfluous quantity of eggs is formed by patients. Therefore, many women who became mothers with the help of IVF gratuitously endow superfluous eggs to those who require donor's eggs.