What Causes Blood Blisters
Blood blisters are caused by blood pooling in a blood vessel, causing the blood to break through the wall of the blood vessel.
Blood blisters can occur on any area that blood vessels are present, but blood blisters can form easily on areas that have been traumatized.
Common causes of blood blisters include blood vessel damage caused by blood thinners, trauma to the area causing blood vessels to break open, and excessive blood flow into an area.
Blood blisters can be a skin reaction caused by a cut, scrape, or burn. It is important to know that blood blisters aren’t always caused by trauma.
Other things that blood blisters can be caused by are insect bites, poison ivy, or heat rash.
Blood blisters most commonly occur when blood vessels are ruptured due to friction or pressure.
People who participate in activities that involve repetitive rubbing causing friction blisters, such as long-distance runners, gymnasts, and weightlifters are very likely to develop blood blisters.
Simple trauma like a blister caused by a shoe, slamming your hand in a door jamb, or hitting your fingers with a hammer while trying to nail something are good examples of reasons people develop blood blisters.
Blood blisters are a common occurrence that can be painful and uncomfortable if not dealt with properly. The most common sites blood blisters occur are the fingers, hands, and toes.
Other common areas that blood blisters can form are the arms, legs, and trunk of the body.
- Sharp, stinging pain
Home Remedies To Heal Blood Blisters On Skin
Blisters filled with blood can be as tiny as a pinhead or they may be larger in size. They are red or purple in color having smooth skin surface. Most blood blisters are painful. Usually blood blisters heal without treatment after few days or a week. But there are home remedies that may be useful in alleviating pain as well as shortening the healing time.
What Are Blood Blisters In A Dogs Body
Also known as hematomas, blood blister on dogs are literally blood-filled blisters that can appear on basically any region of your dogs body. These blood-filled blisters are typically found on a dogs ears and scrotal area, and they are rarely formed on a dogs internal organs. Hematomas often occur when blood vessels are damaged.
Did you know that there are two types of hematomas? The two types of hematomas in dogs: Aural and scrotal.
Aural Blood Blisters: Typically found in a dogs ear, aural hematomas are pretty common. Dogs with long ears are extremely prone to develop aural blood blisters.
Sacral Blood Blisters: These types of hematomas are generally present in a dogs scrotal area, and they are more likely to develop in aging dogs with excess scrotal tissue.
Internal Blood Blisters: As previously mentioned, internal blood blisters are extremely rare. When a dog does have an internal blood blister, it probably developed on the lungs or spleen. These types of rare hematomas can result in severe complications.
Read Also: Where Does Skin Cancer Metastasis To
Causes And Types Of Raised Skin Bumps
The most common causes of raised skin bumps are harmless and do not require medical treatment unless you have discomfort. Here are some of the possible reasons for raised skin bumps:
Less commonly, raised skin bumps are caused by more serious conditions that require treatment. Certain bacterial and viral infections cause bumps and will only get worse if they go undiagnosed and untreated. These serious conditions include:
- chickenpox, a common childhood virus characterized by red, itchy bumps that form all over the body
- impetigo, a bacterial skin infection common in young children that is highly contagious and results in reddish blisters that ooze and develop a honey-colored crust
- MRSA infection, an illness triggered by a staph bacteria that commonly lives on the skin, causing a swollen, painful bump with a white center
- scabies, a skin infestation caused by a tiny mite called Sarcoptes scabiei, producing an itchy, pimple-like rash
Other types of raised skin bumps can be caused by skin cancer. There are several types of skin cancer, all requiring medical management and treatment:
Most skin bumps are harmless and arent cause for concern. However, you should see your doctor if:
- skin bumps change or worsen in appearance, or last for a long time
- you are in pain or they cause discomfort
- you dont know the cause of the bumps
- you suspect you have an infection or skin cancer
The Healthline FindCare tool can provide options in your area if you dont already have a doctor.
Moisturize Your Skin And Stay Hydrated

While your skin might be too oily which can cause blemishes, it could also lack lubrication and be dry which can also lead to breakouts.
Dry skin and dehydrated skin can leave your cells rough and surprisingly sticky, which can result in dead cells stuck in your pores, clogging things up and providing a food source for acne bacteria.
One of the easiest ways to prevent dry skin is stay on top of your hydration. Drinking water is obviously a great place to start, since every organ of your body needs it to function.
Moisturizers also help skin stay hydrated. Those containing hyaluronic acid a naturally occurring compound that has been shown to help your skin, joints and other body parts retain moisture at a rate of 1,000 to one are especially beneficial.
Its also helpful to apply moisturizer to slightly damp skin, to lock in moisture.
Recommended Reading: Can Squamous Cell Carcinoma Spread
Should I See A Doctor If Blood Blisters Develop
If you develop larger blisters or if blood blisters do not heal within seven days, you should see a doctor. They can also be a painful blister and make it difficult to perform daily activities, such as walking or moving your hands.
You should seek medical help if blood blisters are accompanied by a fever, chills, cough, or shortness of breath. This means it could be an infected blister with bacteria and you should seek medical attention immediately.
If blood blisters are not healed and you begin to notice red streaks near the blood blister, it could be symptoms of infection. You should see a doctor if blood blisters are accompanied by any of these symptoms.
It is very important to deal with blood blisters as soon as possible because they will continue to grow until you do something about them.
How To Get Rid Of Blood In Your Pimples
Getting blood in your pimple is really just the result of you injuring your skin in the process of trying to pop a pimple and aside from the issue of pustules, this will account for 100 percent of your blood sightings when it comes to acne.
There are many reasons why popping pimples is bad, but if you get a blood-filled pimple, its really not a reason to panic.
Were not saying theres no danger popping your pimples can inadvertently push infectious bacteria or other material deeper into your skin, which is a contamination you dont want and potentially lead to more swelling or scarring.
Most of the time, however, this is preventable. If you do pop a pimple and cause blood to enter the equation, treat the area as you would an open wound.
The first thing youll want to do is clean the affected area to prevent further opportunities for infection. Youll also want to use a sterile bandage to cover the are if theres still an open wound.
You might also want to apply a cold compress to reduce swelling or inflammation from the additional trauma.
Next, youll want to stop popping pimples entirely, forever.
Its totally understandable to want to detonate those little unsightly blemishes on your own terms. But doing so without any professional training or equipment is a really good way to cause extra damage like bleeding and bruising, expose yourself to further infection, and potentially make the blood-filled bump take longer to heal than it would have with proper acne care.
You May Like: Can Melanoma Spread To Lungs
How To Tell If Its A Blood Blister Or Melanoma
The only way to know for sure if it is a blood blister or melanoma is to have the bump examined. This can be done by visiting your doctor or dermatologist. If you dont typically get pimples or didnt have any injury that would have caused a blood blister, there is more cause for concern. Also, note how the mark develops. If it hasnt gone away after two to three weeks, you should definitely get it checked out.
Read more: What is Skin Cancer?
Managing Boil On Inner Thigh
If youre sure that you simply have a pimple on the inner thigh, then treatment will be similar to what you would do for your face.
Over-the-counter acne creams will work well here, as would a paste of baking soda and apple cider vinegar to dry out the pimples and reduce the chances of getting an infection. Keep the area clean and dry.
If the thigh acne does not go away from self-treatment, see a doctor to discuss other possible treatments, such as medications and creams that help prevent acne from developing in the first place.
But also consider things such as the laundry detergent or soap you use, and materials worn against your skin. All of these can be irritants and could potentially cause pimples.
Also Read:
Read Also: What Does Melanoma Skin Cancer Look Like
What Is The Difference Between A Blood
Regular pimples form when skin pores get clogged with dead skin cells, oil, dirt or sweat. Bacteria and pus collect in the clogged pore, causing it to swell into a bump. A pimple can be a singular blemish or part of more widespread, frequent breakouts, called acne.
A blood-filled pimple looks like a pimple, but its filled with blood. Blood-filled pimples tend to look more irritated and inflamed than regular pimples. And theyre more likely to lead to infections and acne scars.
How Do You Treat A Blood Blister On A Dog
A blood blister on a dog can be treated in many ways. The most common treatments for blood blisters are surgery and draining. A vet will also want to treat the underlying condition. After treating the blood blister, your dog will need to wear an Elizabethan collar for a while. For the best results, you should speak to an experienced vet regarding your dogs hematoma and blood vessels.
You May Like: What Is Skin Cancer Definition
B Over The Counter Treatments
1. Topical Retinoids
You can buy a retinoid cream or gel that is commonly used to treat acne. Retinoids are vitamin A derivatives that regulate the rate of cell growth, which in turn prevents the clogging of the pores on your skin. Examples of topical retinoids include benzoyl peroxide and clindamycin.
Use the retinoid cream or gel once daily, 20 to 30 minutes post face wash or as mentioned on the product label . While mild retinoids are available over the counter, you need a dermatologists prescription for a stronger one.
2. Salicylic Acid
Salicylic acid is a great exfoliant as it can remove deposition of dead cells from the skin surface . Topical formulations used to treat acne usually have a concentration between 0.5% to 5% . However, it is best to avoid products with salicylic acid if you have open wounds or irritation in the affected area.
3. Zinc Ointments
Zinc formulations, such as the ones with zinc oxide, may be used to treat blood-filled pimples at home. Zinc is more effective when used in conjunction with other acne treatments.
How Is A Blood Blister Diagnosed

You usually dont need to see your healthcare provider for a blood blister. But if you see your healthcare provider, they can probably tell you have a blood blister by looking at it. There arent any tests to diagnose a blood blister.
Your healthcare provider will look over the area and make sure its not infected. If the blood blister is in your mouth, eye, genital area or another unusual place, they may take a biopsy. A biopsy takes a sample of the blisters fluid for testing.
Also Check: What Are The 4 Types Of Melanoma
How To Prevent Your Furry Friend From Getting A Hematoma
Do you want to know exactly how to keep your furry friend blood blister-free? The reality is that not all hematomas can be entirely prevented. These great tips will definitely help prevent most hematomas, though.
Ensure that your dog maintains excellent hygiene by cleaning its ears every day
- Get your dog neutered when its a puppy and monitor your dogs activities after the procedure
- Protect your dog from accidents and injuries
- Take your dog to the vet on a regular basis.
- Tell your vet if your dog begins to scratch its ears excessively
- Break up a dog fight as soon as possible
- Walk your dog with a leash or let it play in a fenced yard
- Make sure your dog doesnt have ear infections or a skin infection
- Adhere to all of your vets great treatment recommendations if your dog is ever diagnosed with a hematoma
What Causes Blood Blisters On Skin
Blood blister develops as a result of friction and pressure. We all know the skin has superficial layer called the epidermis and deeper layer called the dermis.
Blood blisters normally occur on bony prominences or over the joints that are exposed to deep pressure and repeated friction. They develop accidentally when the skin is pinched with a tool or an object. Constant rubbing over a particular spot may also give rise to blister filled with blood.
Blisters filled with blood are therefore common under the toes, finger tips, on heel area and metatarsal head. People in certain profession and sport activities such as cricket, baseball, joggers, and drummers are prone to develop blood blisters on their hand and sole.
Also Check: Can Skin Cancer Be Red In Color
How Long Does A Hematoma Last On A Dog
If your dog receives the proper treatment, a hematoma shouldnt last longer than several weeks. Make sure to visit a vet as soon as possible if hematoma lasts over a month. In this case, a vet may suggest another treatment for the hematoma. You can also talk with a vet to determine exactly how long the blood blister will last. The answer will probably depend on whether or not the blood blister is caused by an underlying condition.
People More Likely To Get Pyoderma Gangrenosum
People with the following health conditions are more likely to develop pyoderma gangrenosum:
- rheumatoid arthritis a long-term condition causing pain, swelling and stiffness in the joints
- blood dyscrasia a blood disorder
- hepatitis C inflammation of the liver
- granulomatosis with polyangiitis a rare condition in which the walls of blood vessels become inflamed
- cancer affecting the blood cells including acute myeloid leukaemia
- PAPA syndrome a rare genetic disorder
Also Check: Can Skin Cancer Have Hair Growing Out Of It
What Causes Bumps Or Cyst On Inner Thigh
There are a number of reasons for boils on the inner thigh. The first is hidradenitis suppurativa , which is a disease that starts as pimple-like bumps on the skin that form where pimples typically dont appear: the underarms and groin.
A cyst on the inner thigh filled with blood is typical of HS, and should be looked at by a doctor. In the meantime, be sure to keep it clean so it doesnt get infected.
Use peroxide, witch hazel, or rubbing alcohol on a cotton pad to clean the area three times a day.
Hair follicles can become blocked and cysts and boils can develop as a result.
Cysts on the inner thigh near the groin in females happen most often because of shaving and waxing.
When hair is pulled or cut at the root, it sometimes curls into itself when it regrows, which means that its stuck under the skin and skin cells form layers on top of it.
This ingrown hair irritates the area and can form boils or cysts. Some people are more susceptible to this condition than others.
Boils occur as a result of an infection around a hair follicle. They are common and are most often caused by the Staphylococcus aureus bacteria, the most common bacteria found on the skin.
A staph infection on the inner thigh can cause a boil to appear, and become red, irritated, and painful. A doctor will need to look at it to determine if a prescription is required or if home care will suffice.
When To Seek Medical Care
See your doctor if:
- You have multiple boils or if the boil increases in size or number.
- You have a fever or chills, severe pain, or otherwise feel unwell.
- The boil fails to drain.
- The area of redness surrounding the boil begins spreading.
- You have diabetes, a heart murmur, a problem with your immune system, or are taking immune-suppressing medications when you develop a boil.
- You have had repeated outbreaks of boils.
Read Also: How Do They Remove Basal Cell Carcinoma
How Do You Treat A Blood Blister
Blood blisters typically heal on their own within a week. They heal as new skin grows below the blisters raised layer and the blood in the blister dries out. But if you want to get rid of a blood blister faster, you can try these steps:
Make sure to change your bandage at least once a day. Keep the area clean and dry.
If you experience pain, you may want to apply an ice pack to the area. You can also try an over-the-counter pain reliever such as acetaminophen or ibuprofen .
You should never try to pop a blood blister or peel away the skin around it. The skin over the blood blister protects deeper layers of your skin from getting infected.