SVT explains: That's how many siblings donor children can have

In addition, there is an unregulated private market where men offer sperm on online sites.

The reporter behind Uppdrag gränskning's "Sperm Theft", Lisa Jarenskog, explains why the number of donor siblings can differ greatly - depending on which sperm was used during insemination.

Is there a limit to the number of donor siblings?

You get the answer in the clip above.