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Doctor insights on: What Is The Difference Between A Blood Clot And A Bruise

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I have sore bruise halfway across the back of my knee. I noticed it yesterday after feeling sore pain. I did not injury it. Could this be a blood clot?

I have sore bruise halfway across the back of my knee. I noticed it yesterday after feeling sore pain. I did not injury it. Could this be a blood clot?

Blood clot?: Doubtful. Have you been traveling? Need more history to guide you. Perform a virtual consult to get more information and be able to help you. ...Read more

Bruise Or Contusion (Definition)

Bruises, or ecchymoses, are discolorations and tenderness of the skin or mucous membranes due to the leakage of blood from an injured blood vessel into the surrounding tissues. A serious disease called pupura presents as a cluster of small bruises called petachia. Petachia often appears as many tiny red dots clustered together, and could indicate a problem. ...Read more


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I think I have a bruise on my leg. How do I tell the difference between a blood clot and a bruise?

I think I have a bruise on my leg. How do I tell the difference between a blood clot and a bruise?

Clots are deeper: A bruise you can see on the skin. A clot, especially a significant one is in the deep veins and is not visible. ...Read more

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What is the difference between bruises and blood clots?

What is the difference between bruises and blood clots?

Location: Blood clots occurs within blood vessels, when liquid blood solidifies. Outside of blood vessels, thiscollection is called a hematoma. A bruise occrs when capillaries are damaged and blood seeps out, usually after blunt trauma. Less severe than either of the above. ...Read more

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Can a bruise turn into a blood clot?

Can a bruise turn into a blood clot?

Not exactly: A bruise is blood in the tissue near the surface in general so you see it.
It is "clotted" but localized and will resolve/ resorb over a week or two.
A black eye is an example. ...Read more

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How fast after a severe bruise can a blood clot form?

How fast after a severe bruise can a blood clot form?

Fast enough: Severity can trigger blot formation or hematoma esp. If you take blood thinner. ...Read more

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What can I do if my bruise turned hard, is it a blood clot?

What can I do if my bruise turned hard, is it a blood clot?

Hmm hard to say: Could be a hematoma. Could be a mass. If you are concerned see a doctor. Any blood clot in the lower extremities could migrate to yuor lung although I think it is unlikely. ...Read more

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I have a bruise on my left thigh? Is it a blood clot?

I have a bruise on my left thigh? Is it a blood clot?

Tricky: Without an exam, I can only give general information. A bruise is blood outside of the vessels. As such, even if clotted, it can't go anywhere. And internal vessel problems like a clot in a large vein can have a variety of visible effects. BUT you'd really expect the circulation below the blockage to be really messed up (swelling below clot). ...Read more

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Help please! Is easy bruising a sign of blood clots?

Help please! Is easy bruising a sign of blood clots?

Not really: Easy bruising indicates that your capillaries are fragile and you bleed easily, much like those who are on Aspirin or other blood thinners. There are other reasons for easy bruising. If you feel your condition is abnormally frequent and bruises lasts much longer before resolution, you should see a doctor for eval. ...Read more

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Pain in hamstrings I have a bruise on the inside of thigh could this be a sign of blood clots Iam on andro gel?

Pain in hamstrings I have a bruise on the inside of thigh could this be a sign of blood clots Iam on andro gel?

Not likely.: A bruise is not a sign of a blood clot. It is a sign of bleeding from some type of injury usually. Are you on aspirin or other blood thinners? If yes, then you are at increased risk of bleeding from any injury.

If you are concerned about a blood clot, you should see your Dr. Who could do an ultrasound on the leg to check for it. ...Read more

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I ran into something got a severe round bruise with a hard knot in middle and it hurts. Can I have a blood clot or harm me?

I ran into something got a severe round bruise with a hard knot in middle and it hurts. Can I have a blood clot or harm me?

Bruising: It is likely a simple contusion. If you are experiencing any pain out of the ordinary, or any other symptoms such as light headedness, or fatigue, it is best that you have the area examined by a physician. ...Read more

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I am 24 and generally a healthy person. I fell down a flight of stairs on my butt and have a huge bruise on my butt. Can I get a blood clot?

I am 24 and generally a healthy person. I fell down a flight of stairs on my butt and have a huge bruise on my butt. Can I get a blood clot?

Not likely: The huge bruise is blood under the skin - in the soft tissue of the buttocks. Pockets of blood (hematoma) can also form under the skin. The kind of clots most people are concerned about are the ones that can go to the lungs. This is a deep venous thrombosis (dvt). Unless your fall has made you immobile or you have leg swelling on one side, then DVT is unlikely. ...Read more

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Does a blood clot in leg feel like bruise?

Maybe: At times it can, but it may have no symptoms. Check with your doctor is you are prone to these in your past of family. ...Read more

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Can really bad bruises on your arm from being grabbed really hard cause blood clots?

Can really bad bruises on your arm from being grabbed really hard cause blood clots?

No: Blood clots rarely, if ever, form in the arms. If the injury is due to domestic abuse, you should contact the police.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex.
Get HPV vaccine. ...Read more

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Brother kicked me in leg really hard big bruise can this cause blood clot?

Brother kicked me in leg really hard big bruise can this cause blood clot?

Can you walk?: If you have no underlying illness and can walk about, you are not likely to get a blood clot.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Drink enough water daily so that your urine is mostly colorless.
Practice safe sex.
Get HPV vaccine. ...Read more

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I have a bruise on my leg that just showed up without injury. Is that normal? I'm on a medication that can cause blood clots. Should I be concerned?

Bruise: Spontaneous bruising is very common and is not usually related to blood clots. It should disappear but if you get more you should let your doctor have a look at them ...Read more

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I have banged my arm quite bad and have a huge bruise. Just worried about the bruise as it's painful and gets really hot. Is this possible blood clot?

I have banged my arm quite bad and have a huge bruise. Just worried about the bruise as it's painful and gets really hot. Is this possible blood clot?

Unlikely: It is not feasible to give you a meaningful opinion without examining you, however, what you described is consistent with a bruise. If the pain and heat does not go away in a day or so, it would be prudent to see a doctor to rule out infection.
Wish you good health. ...Read more

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Bruising around ankle after ACL surgery, is this a blood clot?

Bruising around ankle after ACL surgery, is this a blood clot?

Probably not: It's probably associated with the knee surgery. Gravity simply allows the blood flow down to the ground and causes the bruising around your ankle. However, if you are having swelling in your calf or thigh with intense pain, you should have a doppler ultrasound to check it. ...Read more

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Blood clots in shin from bruise?

Possible: If your chin injury was bad enough to cause some swelling of the leg that could pressure the veins and cause blood clots. ...Read more

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I had a moderate bruise and now and noticing a hard lump under my skin where the bruise is going away. Should I be concerned that its a blood clot?

I had a moderate bruise and now and noticing a hard lump under my skin where the bruise is going away. Should I be concerned that its a blood clot?

It is but it isn't: 'blood clots' that are dangerous are those within blood vessels; these can travel thru the bloodstream and block blood flow. Blood is supposed to clot outside blood vessels--that actually stops bleeding after trauma, such as your black-and-blue mark. Your hard spot is blood outside any blood vessel and is harmless; your body will absorb this slowly over the next few weeks. ...Read more

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What does a blood clot look like on forearm. A bruise-like circle of about a 1/2 inch just showed up; yesterday it was brown and today it is red.?

What does a blood clot look like on forearm. A bruise-like circle of about a 1/2 inch just showed up; yesterday it was brown and today it is red.?

Varies: Blood clots can produce different presenting symptoms. If it is in the artery, it can cause dramatic pain and even turn the limb blue/black if it blocks important circulation to the rest of the arm. If in the vein, it will lead to swelling in the limb. If you have a bruise, it is likely a small bursted vessel. You may want to consider an insect bite too (spider?) and it may be infected. ...Read more

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A chair feel on my lower leg 2 wks ago. I now have a not feeling there & it still feels bruised, but only when I touch it. Could this be a blood clot?

A chair feel on my lower leg 2 wks ago. I now have a not feeling there & it still feels bruised, but only when I touch it. Could this be a blood clot?

No: It's just bruised. There may be a "hematoma" or collection of blood underneath the skin. This is superficial and not the type of clot that is dangerous. It can take up to 6 weeks for the numbness to resolve due to injured superficial nerves. ...Read more

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Noticed a bruise next to shin and swelling around it. Is this just a bruise or could be a blood clot?

Noticed a bruise next to shin and swelling around it. Is this just a bruise or could be a blood clot?

Not a blood clot: Blood clots (the BAD deep venous kind) occur behind the tibia or shin bone within the deep vasculature. Your bruising is more likely due to more direct type trauma with expected local swelling. The hematoma can take several weeks to resolve. A protective wrap may be all that is needed to avoid recurrent injury to the tender area. If pain persists longer than that, orthopaedic evaluation is needed. ...Read more

Blood Clot (Definition)

A blood clot or thrombus is the final step of the coagulation cascade. It is a good thing when your body is trying to stop blood loss, however a blood clot can form in the veins after prolonged periods of immobility. This type of like ...Read more


Dr. Melissa Gowans
2,095 Doctors shared insights

Bruising (Definition)

Bruising = a contusion with ...Read more