What conditions should a family have to undergo IVF?

Patient's question:

I have been successful 3 times domestically. Friends suggested I try in vitro fertilization. I don't know what conditions the family needs to have and what kind of help is needed: seeking explanation

Doctor's answer:

1. Male factors: After the semen is purified and refined, it can be clearly determined to have fertilization capability under in vitro culture and the age is not >55;
2. Immunological factors: Refers to the presence of positive anti-sperm antibodies in male serum or seminal plasma, leading to an autoimmune response against sperm and resulting in immunological infertility.
3. The female is in good health, mentally stable, able to endure early pregnancy and childbirth, and the age is not >48.