abnormal uterine bleeding
"My first shot was July 16, 2013, the last shot was March 24, 2014. Four shots total and in that time I had some type of vaginal discharge every month. I wore some type of pantyliner or pad everyday during this time because I never knew if I would have a period. The bleeding wasn't always heavy, but I bled enough that I became iron deficient anemic.  I did experience larger than normal clots some months. I wanted to try the full year to see if my periods would ever stop, but the lack of iron made me get off Depo."