Hello, I am 19 years old and female, if it matters.
A couple days ago I noticed a diagonal bruise formed on my abdomen beside my navel. The width of the bruise is thinner than one of my fingers and the length is about the size of 3 finger widths. Today, however, I noticed another formed, a bit farther away from the navel and slightly lower but appearance wise it's identical to the one already there. Should I be worried? Also, what could have caused this?