Medical Questions? Ask a Doctor Online!
This is Dr. David
how old are you? are you a man or woman?
sometimes you can accidentally hit yourself when you are sleeping or turning over in bed which can cause a bruise.
would you like to send a clear jpg photo of the bruised area so I can see it?
you can also ice the area with a bag of ice in a zip lock bag wrapped in a towel to help decrease swelling and pain