These studies show that actually this experiment is not very likely to traumatize the children who wish to make this approach.
These studies also show that most donors qualify this experiment positive.
"There is considerable debate about the potential impact of having been conceived by a known or unknown sperm donor on an offspring's psychological adjustment, especially during the vulnerable period of adolescence," said Henny Bos, at the University of Amsterdam in the Netherlands, in an email to Reuters Health.
Based on questionnaires and interviews with the children when they were from 10 to 17 years old, the researchers did not find any proof of "social and attention problems, or depression and anxiety."
The behaviors are the same ones than for children of heterosexual couples.
"The other interesting finding was how contact was not only between the donor and the child but sometimes included other family members too," Jadva said in an email to Reuters Health.
"In the U.K., we have removed donor anonymity so that all donors are now identifiable once the resultant child reaches the age of 18, and identifiable donors are also on the rise in the U.S. So contact between donors and offspring is something we will be seeing more of."