Edin started playing handball when she was 5 years old, with her mother as a trainer.[citation needed]
She is married to fellow handball player Gro Hammerseng, and they have a son together, born on 2 February 2012. Hammerseng and Edin married on 3 August 2013. The couple both play for the Norwegian handball club Larvik HK.[5]
Hammerseng-Edin and her wife wrote a book together titled Anja + Gro = Mio, which was published in February 2014.[citation needed]
^Haraldsen, Stian (2016). "De 25 medaljemesterskapene". Gode som gull. 30 år med håndballjentene (in Norwegian). Oslo: Aschehoug. pp. 144–159. ISBN978-82-03-29618-5.