There are many reasons to utilize donor sperm for family building.
For women without a male partner, therapeutic donor insemination (TDI) is an obvious choice which gives them the opportunity to experience pregnancy and have a genetically related child.
For others TDI is a good choice in cases of severe male factor infertility when in vitro fertilization is not an option. Some couples prefer the ease of TDI to alternatives such as IVF.
Finally, donor sperm can also be used in conjunction with advanced procedures such as IVF if female factors require it.