Source of IVF sperm
IVF is achieved through artificial assisted reproduction technology, in which sperm is a crucial link. Spermatozoa come from a variety of sources, including either autologous sperm from a spouse or allogeneic sperm from a donor. The specific source of IVF sperm will be described from two aspects: donor and autologous sperm.

Extraction and storage of autologous sperm
Autologous sperm refers to the semen of male patients, which is extracted from their bodies for the treatment of test tube babies through a series of technical operations. In the process of clinical diagnosis, when male patients are diagnosed with sperm quality problems or sperm cannot be discharged naturally, doctors will recommend that they take the method of autologous sperm extraction and storage. The specific operation includes the following steps:
First, male patients need to conduct manual or assisted ejaculation in the room designated by the hospital, and collect semen as completely as possible in a special container. Then, the doctor will centrifugate the collected semen, through which the sperm can be obtained. Finally, sperm will be stored in liquid nitrogen tank for a long time for future laboratory operation and IVF treatment.
Selection and acquisition of allosperm
For some male patients who cannot provide healthy sperm or female patients who do not have a spouse, hospitals usually recommend using donor's allogeneic sperm for IVF treatment. Allogeneic sperm acquisition requires strict screening procedures to ensure high sperm quality and low risk of genetic and venereal diseases. The specific operation includes the following steps:
First, the hospital will widely publicize and recruit healthy male donors. Donors usually need to be between 20 and 40 years old, with good health and no family history of genetic diseases. Secondly, sperm donors need to pass strict physical examination, including semen analysis, STD testing, genetic counseling, etc., to ensure that their sperm quality is good and there is no risk of disease. Finally, the hospital will store the donor's semen anonymously and store its semen in a specific liquid nitrogen tank for IVF treatment.
Law and ethics of IVF sperm supply
The extraction, storage and supply of sperm involve many laws and ethics. In most countries and regions, only medical institutions that meet specific conditions can carry out IVF treatment, and they need to follow certain legal and ethical guidelines. Common specifications include:
-Legal marriage: IVF treatment is usually only applicable to couples in a marital relationship. The hospital requires a marriage certificate to ensure the legality of legal marriage.
-Genetic disease screening: The hospital will carry out rigorous genetic disease screening for donors and autologous sperm extractors to prevent genetic diseases and other problems from appearing in offspring.
-Anonymous sperm donation: The identity of the donor is usually anonymous, and the fertilized egg and IVF will not know the information of the donor at birth.
The purpose of the above specifications is to protect the rights and interests of patients and donors, and ensure the safety and reliability of IVF treatment.
summary
The source of IVF sperm mainly includes autologous sperm and donor's allogeneic sperm. Autologous sperm is extracted by manual or assisted ejaculation, and then centrifuged and stored for a long time; The donor's sperm needs to be strictly screened and stored anonymously. The source and supply of IVF sperm are restricted by laws and ethics to protect the rights and interests of patients and donors.
Therefore, through the above methods, the source of IVF sperm can be ensured, providing a hope for infertile patients, so that more couples can realize their reproductive dreams.