they dont last long, then they will fall off
Depending on the size of it - a few days to a couple of weeks.how long will it take for pregnancy blood test results?
Blood blisters usually only last a few days. If you do not break the skin, they will heal faster. also depends in the severity of how hard you banged it and how large it is. but generally at the most a weekHow long does a bowl of meth stay in your system?