A sperm donation is when a man donates his sperm to a woman. This does not categorize the relationship between these people. A great many constellations are conceivable. We can talk about a more or less anonymous donation through a sperm bank, but also about a private sperm donor who does not reveal his identity, whom the child cannot get to know later on, a so-called no sperm donor, or also a sperm donor who reveals his identity, who keeps loose contact with the child, a so-called yes sperm donor. A man who donates his sperm within a rainbow family or co-parenthood would not be called a sperm donor. How a sperm donation is made can also vary widely. From the natural method to the cup method to assisted procedures in a fertility clinic, all kinds of options are available.