She received a one-year ban from the sport of athletics in 2008 for missing three doping tests. She is the sister of Mina Aït Hammou, another successful Moroccan middle-distance athlete.
Aït Hammou competed on the world track stage for the first time at the 2003 World Championships in Athletics, and she came close to reaching the 800 m final, finishing third in her semi-final (in which her sister won and went on to take fourth in the final).[7] She closed the year at the 2003 Military World Games and became the 800 m gold medallist at the event.[8]
Aït Hammou won the 1500 m gold medal at the 2007 Pan Arab Games, and also joined her sister in the Moroccan team to win the silver in the 4×400 metres relay.[11] After being eliminated in the semi-finals at the 2008 IAAF World Indoor Championships she was preparing to compete at the 2008 Summer Olympics. This was not to be, however, as both she and her sister were banned from competition by the IAAF for missing three out of competition doping tests between June 2007 and May 2008, resulting in a year-long ban from the sport.[12][13] She returned at the end of the 2009 season and competed at the 2009 Jeux de la Francophonie. She won the 800 m gold and also took 1500 m bronze in a closely run Moroccan sweep of the event, with Btissam Lakhouad and Siham Hilali the other medallists.[14]