The patients who came, they all looked great, were well-educated and very healthy. They wanted to have a child from, well, a certain kind of man. They saw that kind of father figure as the ...

There are term limits — why not sperm limits? The debate over how often a donor’s sperm should be used to conceive children has been reignited in Europe, after 67 children were birthed accidentally ...

A genetic mutation that carries a 90% cancer risk has been passed on by an unwitting sperm donor to dozens of children, a ...

Some children have already died and only a minority who inherit the mutation will escape cancer in their lifetimes.

Karin Hammarberg does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...