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Doctor insights on: Blood Blister

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Dr. David Hardin
284 Doctors shared insights

Blood Blister (Overview)

A blood blister forms when skin and small blood vessels are damaged without breaking the skin. Trapped beneath the skin surface is some blood and skin fluid. Blood blisters are commonly caused by accidents in which the skin is pinched by a tool or a heavy weight, or they may occur from constant rubbing back and forth.


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What causes blood blister on roof of mouth and how long to heal?

What causes blood blister on roof of mouth and how long to heal?

Cause?: The most likely cause would be some irritation, perhaps from eating a hard or sharp piece of food, or accidental abrasion while brushing your teeth. However, without actually being able to see you clinically, we can't give you an accurate diagnosis. It should be gone in about one week. If it lasts more than two weeks, make sure you have it diagnosed by your dentist! ...Read more

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Dr. David Hardin
284 Doctors shared insights

Blood Blister (Overview)

A blood blister forms when skin and small blood vessels are damaged without breaking the skin. Trapped beneath the skin surface is some blood and skin fluid. Blood blisters are commonly caused by accidents in which the skin is pinched by a tool or a heavy weight, or they may occur from constant rubbing back and forth.


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I got a small blood blister on my lip. What does it mean?

I got a small blood blister on my lip. What does it mean?

Blood blister: Hello, I wouldn't worry too much about a blood blister since they most commonly arise from the trauma of biting the lip. Avoid further trauma and see your doctor for removal. ...Read more

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How do you treat blood blisters?

How do you treat blood blisters?

Protect it: An unpopped blister represents a closed sterile environment. Yes on occasion one can become infected then it is time to open it, however the risk of infection in a dressed open wound is still higher than that of an intact blister. The blister will gradually resolve with time. ...Read more

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How can you treat a blood blister?

How can you treat a blood blister?

Leave or release: If the pressure is unbearable, clean it and a sterile needle with some alcohol and puncture it from the side to release the blood. Do not remove the roof as this will act as a natural dressing until the skin underneath heals and pushes this dead skin off. I recommend aquaphor and a bandage for 24 hrs after puncturing. And do not touch it if you are diabetic and it is on your foot - get checked. ...Read more

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I have several itchy blood blisters on scrotum. They have bled profusely on two occasions. Is there any treatment recommended?

Blood blisters: These are likely small telangectasias or benign dilated veins. They can be treated with a laser likely with a dermatologist in office. ...Read more

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What may cause a blood blister on palate?

What may cause a blood blister on palate?

Trauma: Usually it is the result of trauma such as rough food (taco chip?), or suction. But if it doesn't disappear within a week -10 days, call your dentist to check it. If it doesn't resolve it might be something more serious. Please follow up on this. ...Read more

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I have a rather large blood blister on my stomach area and it started bleeding so I popped it. How can I now prevent infection?

I have a rather large blood blister on my stomach area and it started bleeding so I popped it. How can I now prevent infection?

Blood blister: Generally, blisters should not be "popped" as the area beneath them is sterile. Preventive measure for one you've broken: wash gently with warm soap & water; pat dry; apply antibiotic ointment & non-stick bandage. Watch for signs of infection: pain, increasing redness, pus. If those occur, see doc for treatment. Btw, may not have been blood blister: as we age get benign red lumps called hemangioma. ...Read more

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How can I avoid blood blisters in mouth when I smoke weed?

How can I avoid blood blisters in mouth when I smoke weed?

Don't smoke: If consumption or exposure to any drug or medication occurs it is probably best to avoid it. ...Read more

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I get a blood blister on my tongue for no reason it's stays for about half an hour then disappears why does this happen?

I get a blood blister on my tongue for no reason it's stays for about half an hour then disappears why does this happen?

Sure? Blood Blister: If you are sure it's a blood blister: thinning of a blood vessel wall could cause "ballooning" when the pressure goes up, then collapse when the pressure goes back down. The concern is if this blister doesn't resolve and gets cut, getting it to stop bleeding could be difficult.
Have it checked out with an oral surgeon. ...Read more

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Should I pop my blood blister?

Should I pop my blood blister?

It may help: Sterilizing a needle by fire and piercing a blood blister may help relieve pressure and pain. That said, if there are any questions, you should visit a medical professional. Also, do not remove a blister entirely, as blisters can protect raw skin. ...Read more

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How do I treat a blood blister?

How do I treat a blood blister?

Protect it: An unpopped blister represents a closed sterile environment. Yes on occasion one can become infected then it is time to open it, however the risk of infection in a dressed open wound is still higher than that of an intact blister. The blister will gradually resolve with time. ...Read more

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How can you treat a blood blister?

Leave or release: If the pressure is unbearable, clean it and a sterile needle with some alcohol and puncture it from the side to release the blood. Do not remove the roof as this will act as a natural dressing until the skin underneath heals and pushes this dead skin off. I recommend aquaphor and a bandage for 24 hrs after puncturing. And do not touch it if you are diabetic and it is on your foot - get checked. ...Read more

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Dr. Philip Miller
1,734 Doctors shared insights

Blistering (Definition)

A blister is a collection of fluid under the epidermis. A blistering rash is one in which ...Read more