Sperm donation involves using sperm from a sperm donor to fertilize an egg. This option is typically considered when male partners have severe infertility issues or genetic conditions that could be passed on to offspring.
Egg donation is used when a woman's eggs are not viable or of poor quality. An egg donor's eggs are retrieved, fertilized with sperm (either from the male partner or a donor), and then transferred into the recipient's uterus.
Embryo donation involves using embryos that were created from the eggs and sperm of donors. This option is often chosen when both partners have fertility issues or genetic concerns that make using their own gametes (eggs and sperm) unsuitable.