Blood blister: a blister

A blood blister can sometimes be very painful. If the blood blister is in a frequently used area, such as the foot or hand, it can cause quite a bit of inconvenience. Blood blisters can also occur in the mouth.

Blood blister

A blood blister is a blister in the skin that is filled with blood. A normal blister fills with fluid, a blood blister with blood. That’s where the difference lies. A blood blister that is punctured has a much greater risk of infection than a normal blister that is punctured. Something to definitely think about.


A blood blister often occurs after pinching the skin. This can be when the skin gets caught in something, for example a pair of pliers. This causes damage to a blood vessel. The blood then remains well confined between a number of cells and does not drain away. The blood accumulates in this space and a blister is formed, filled with blood.


A blood blister can sometimes be very painful. If the blood blister is in a frequently used area, such as the foot or hand, it can cause quite a bit of inconvenience. You can also use a blister plaster on the foot to relieve the pain when walking. A blood blister usually heals on its own after a few days.


If the blood blister causes a lot of pain and inconvenience, it can also be punctured. This must always be done with a sterile needle. Do not use just any needle, as this can cause infections. Use a special needle for this that is sterile packed, or sterilize a needle yourself. Disinfect the skin beforehand. Puncture the blister in two places so that the blood can drain properly. Do this as close to the skin as possible. Press the blister with a cotton swab to allow the blood to drain and collect the blood with gauze. Sometimes the blister fills with blood again because the blood vessel is still damaged.


The blood blister itself is sterile and contains no bacteria. When a blood blister is punctured, a clear path is created for bacteria. After puncturing a blood blister, there is a chance that bacteria can enter through the punctured opening. It is therefore best to thoroughly disinfect the skin and cover the punctured blister. It is better not to puncture the blood blister at all, no matter how painful it is and no matter how bad it looks. This prevents a lot of trouble afterwards. Only puncture the blister when absolutely necessary.

Healing blood blister

A blood blister that has been punctured will heal faster because the blood does not have to be cleaned up by the body. The skin will peel off over time and a new piece of skin will develop. A blood blister that has not been punctured heals more slowly but has less chance of infection. The blood clots under the skin, which can give a brown color. The color can even go up to black, nothing to worry about. Over time, the blood is drained. The skin peels off and a new piece of skin is created. After a few weeks, the blood blister is no longer visible.

Blood blister in the mouth

Blood blisters can also develop in the mouth as a result of hard eating and hypersensitivity, or jamming of the dentures. Blood blisters in the mouth are very painful and annoying. They can be punctured with a sterile needle. Rinsing with a disinfectant is recommended afterwards. A blood blister in the mouth or pharynx can grow considerably and often causes a tendency to gag. In addition, it hurts when swallowing or chewing. A blood blister in the mouth usually heals after a few days.