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Doctor insights on: Blood Bruises On Arm

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How long should a bruise from having blood drawn from my arm last?

How long should a bruise from having blood drawn from my arm last?

10 days: Usually a bruise resolves in 7 to 10 days. It will change color from blue to green to yellow as it revolves. ...Read more

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Dr. William Forsythe
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21 years in practice
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Bruise (Definition)

Bruises, or ecchymoses, are a discoloration and tenderness of the skin or mucous membranes due to the leakage of blood from an injured blood vessel into the tissues. Pupura refers to bruising as the result of a disease condition. A very small bruise is called a petechia. These often appear as many tiny red dots clustered together, and could ...Read more


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Why does the skin on your arm around the area blood is taken from bruise after a blood test?

Why does the skin on your arm around the area blood is taken from bruise after a blood test?

Bruise: The blood vessel is punctured when blood is withdrawn during a blood test. If the vessel is not compressed long enough, blood will leak out of the vessel giving a bruise. Holding direct pressure with a cotton ball for 10 or 15 minutes is usually enough. However if a person is on platlet inhibitors such as asprin longer might be necessary. ...Read more

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Dr. William Forsythe
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21 years in practice
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I had blood drawn from my arm and now my arm and elbow is bruised and discolored.. Should I be alarmed?

I had blood drawn from my arm and now my arm and elbow is bruised and discolored.. Should I be alarmed?

Possibly: Unfortunately, bruising after phlebotomy is a common side effect especially if you are on blood thinners. If the bruising continues to spread, becomes excessively painful, swells, becomes red & hot, a visit to your doctor is indicated. ...Read more

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I had a blood test a week ago that left a small bruise, which is now large/dark purple and spreading up arm. Could there be something wrong?

Yes, if the arm is hot : To touch, and you have swelling, and see streaks of bruising going up the arm. Then you have to go immediately in the ER.If it is not hot to the touch, and no swelling or pain, then you need to call your doctor as soon as possible to be seen by her/him, and notify the lab that you are experiencing this too.That has to be documented by the lab manager. Blood thinners or low platelets can do this2 ...Read more

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Dr. William Forsythe
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21 years in practice
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Gave blood over four weeks ago. When drawn, my arm was shaking almost uncontrollably. It bruised dark purple, now gone, but still hurts. Go see dr?

Gave blood over four weeks ago. When drawn, my arm was shaking almost uncontrollably. It bruised dark purple, now gone, but still hurts.  Go see dr?

Minor injury: The shaking of your hand probably caused the needle to pierce and traumatize the vein and tissue. This caused a hematoma (the discoloration). You also may have traumatized a small nerve or caused a mechanical phlebitis ( inflammation of a vein). This could account for the pain. Lastly there is rare neurologic condition called rsd that can can occur from minor injuries. This in unlikely. ...Read more

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I had blood drawn from my arm 10 days ago. The nurse didn't miss, but I still have a bruise that is 10 CM in length and is getting more painful?

I had blood drawn from my arm 10 days ago. The nurse didn't miss, but I still have a bruise that is 10 CM in length and is getting more painful?

See doctor: You should see your doctor, as a hematoma/bruise should not be hurting 10 days after a blood draw. You should contact the facility where you had the blood drawn. ...Read more

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Got blood taken 5 days ago and area still is sore like its bruised but no black n blue marks or anything when i bend arm it hurts is that normal?

This is possible.: Sometimes one can have pain for several days following a routine blood draw. Really hard to say exactly what causes this, but it is not generally related to bad technique on the part of the technician. ...Read more

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Dr. Melissa Gowans
1,204 doctors shared insights

Ecchymoses (Definition)

Ecchymoses is also known as Bruise. Ecchymoses are bruises. Bruises are purple or red collections of blood under the skin that appear after blood vessels in the skin break, causing the blood to spread through the tissues ...Read more


Dr. Lori Semel
1,799 doctors shared insights

Bruising (Definition)

Bruises may occur over skin that is injured. Bruising from very minor injury can be a sign ...Read more


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Dr. William Forsythe
Board Certified, Emergency Medicine
21 years in practice
169K people helped
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