Blood bubbles caused by internal bleeding of finger trauma may be caused by increased bleeding pressure, limited local activity, inflammatory stimulation and other reasons, so obvious pain will occur. In this case, the pressure and pain can be relieved by bloodletting through acupuncture, but attention should be paid to aseptic operation to prevent infection. If the blood bubbles are small, you can't pick them out. Just take some oral anti-inflammatory drugs and some drugs for promoting blood circulation. But be careful not to rub. 2. If the blood bubble is large, it needs to be punctured before disinfection. Of course, you also need to take some anti-inflammatory drugs and drugs to promote blood circulation. After puncture, the affected area should be disinfected every day to prevent infection and avoid wound inflammation. There is also the need to prevent blood bubbles from touching water or unclean things.