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Doctor insights on: Rash On Arm After Blood Draw

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How common is it to get a thrombosis in your arm after a routine blood draw?

How common is it to get a thrombosis in your arm after a routine blood draw?

Common: The vein that is punctured for the test will often clot and form a lump of sorts.-- especially if the phlebotomist missed vein or went thru it with the needle. This is a superficial vein, usually not serious and responds to heat and rest. If there is redness or persistent pain, see and md. Not all clots are serious but, when in doubt, of course please please see an md feel better. ...Read more

Dr. John Chiu
2,673 Doctors shared insights

Rash (Definition)

A skin rash is a symptom in which a person has changes on part or all of his skin, such as color changes, bumps, blisters, oozing, peeling, ...Read more


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A clot of 1 cm diameter appeared in about forty minutes after the blood draw in inner part of my arm near elbow, Should I be worried? Thank you

A clot of 1 cm diameter appeared in about forty minutes after the blood draw in inner part of my arm near elbow, Should I be worried? Thank you

Probably not a great: Deal yet this reflects poor phlebotomy technique (e.g double wall puncture, etc.) combined with not holding pressure (with a single finger tip) on the location (s) of the vein (s) puncture after the blood sample was collected. This, & possible damage to the vein (s), at that location allowed continued bleeding from the punctured vein such that accumulated blood became visible through the skin. ...Read more

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Felt extr pain during blood draw yday in left arm & asked to stop. Still hurts in that spot and nerve clicks when I lift the arm. Will this heal? Thanks.

Felt extr pain during blood draw yday in left arm & asked to stop. Still hurts in that spot and nerve clicks when I lift the arm. Will this heal? Thanks.

Nerve pain: Yes. Sometimes the needle can pierce a sensory nerve under the skin. Apply ice and the pain should resolve in a few days. Neuropathic pain medicine and compound creams can help reduce the pain too. ...Read more

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Why after blood draw in arm a big bruise?

Why after blood draw in arm a big bruise?

Normal: Some of the blood drawn during the needle stick leaked inside your skin, its ok and it happens, unless there is a hard lump or extreme pain then you should be ok, it will disappear just like any other bruise. ...Read more

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Yesterday I had blood draw from my arm and today, I scratch it and now a knot came up as a size of a dime, is this normal and should I be concerned?

Yesterday I had blood draw from my arm and today, I scratch it and now a knot came up as a size of a dime, is this normal and should I be concerned?

Not unusual: The knot is from bleeding under the skin after needle was removed. It's called a hematoma. It will resolve in a week or two just like a bruise would. No cause for alarm. Thanks for trusting HealthTap! ...Read more

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Tingling in left forearm down to fingers after blood draw 2 days ago. Shock-like pain at poke site each time I flex arm. What's wrong? How to recover? Thx.

Tingling in left forearm down to fingers after blood draw 2 days ago. Shock-like pain at poke site each time I flex arm. What's wrong? How to recover? Thx.

Hematoma: It seems you developed a hematoma, or localized bleeding under the skin at the site of your blood draw. This should resolve on its own. The hematoma seems to be pressing on a nerve when you move or flex your arm. If it persists, you may need to be evaluated. Give it a few days ...Read more

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Nerve Pain at blood draw site upon flexing arm. Though doesn't restrict movement, it makes me hesitant/careful to move it. Is it arm weakness? Thanks.

Nerve Pain at blood draw site upon flexing arm. Though doesn't restrict movement, it makes me hesitant/careful to move it. Is it arm weakness? Thanks.

Continue to monitor: Pain is not the same thing as weakness, but pain could lead to weakness. Continue to monitor the symptoms, and if they worsen (skin discoloration, true weakness, worsening pain) or persist, see your primary care physician. Http://www. Nlm. Nih. Gov/medlineplus/ency/article/003206.htm ...Read more

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Expert advice for blood draws. I fear the alcohol bottle before blood draw thinking it may have HIV fluids other than blood on it because they are transparent. How long should I wait (minutes) for the liquid on my arm to dry before blood draw?

Expert advice for blood draws. I fear the alcohol bottle before blood draw thinking it may have HIV fluids other than blood on it because they are transparent. How long should I wait (minutes) for the liquid on my arm to dry before blood draw?

Easy does it, Joe: Listen buddy. You're right to be concerned about HIV, but the chance of there being HIV in somebody's alcohol bottle (which would kill it) is zero. If you allow yourself to indulge in this kind of thinking, you'll be paralyzed with fear of everything in daily life. You simply cannot afford this. To be brave, act brave. Never limit yourself because of fears you know are unrealistic. Best wishes. ...Read more

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Is pain on the inner right side of forearm and outer side of upper arm expected after nerve hit from blood draw 7 days ago at forearm of left hand?

I would not think: That the discomfort would persist from a blood draw a week ago unless a pain sensitive structure was injured. You might want to have that looked at. In the meantime take some Motrin or another anti-inflammatory for a couple of days to see if the pain subsides. ...Read more

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I had a blood draw a couple hours ago. I have arm pain and stiffness, is that typical? Is naseau, dizziness also common or would that just be anxiety?

I had a blood draw a couple hours ago. I have arm pain and stiffness, is that typical? Is naseau, dizziness also common or would that just be anxiety?

Anxiety: Sounds like anxiety. You may be a little sore for a few hours at the puncture site. Give it some time and it will go away. ...Read more

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Week ago I did blood draw and I felt pain from pinch down to my hand. After few days little bruise appeared. It still hurt when I straight arm. Why?

Week ago I did blood draw and I felt pain from pinch down to my hand. After few days little bruise appeared. It still hurt when I straight arm. Why?

Likely harmless: What you describe is a "blown" vein. When your blood was drawn, the tech likely obtained the specimen then on withdrawal the vein ruptured which isn't as bad as it sounds. Veins often have associated nerves that travel with them. The bruising also makes this more likely. Apply heat a few times per day and it should go away. ...Read more

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Nerve Pain at blood draw site upon flexing arm. Almost constant mild nerve pain from inner forearm to lower palm. What to expect? How to promote healing?

Nerve Pain at blood draw site upon flexing arm. Almost constant mild nerve pain from inner forearm to lower palm. What to expect? How to promote healing?

Nerve pain?: Sometimes there can be nerve pain at a blood draw site. It normally heals after 1-2 weeks, sometimes a little longer. It may help to prevent trauma to this area, treat with a warm compress (wash cloth, warm water bottle) a couple times per day, and avoid blood draws to that site until it feels better. ...Read more

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Tingling in left forearm down to fingers after blood draw 2 days ago. Shock-like pain at poke site each time I flex arm. Perm nerve damage? Visit doc?

Tingling in left forearm down to fingers after blood draw 2 days ago. Shock-like pain at poke site each time I flex arm. Perm nerve damage? Visit doc?

Inflammation: Most likely you just have localized inflammation of the nerve. There is nothing a physician will be able to do to fix this problem. You can try an NSAID such as ibuprofen or naproxen to help with the inflammation ...Read more

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I have gotten blood draw twice on same arm now I feel thirsty and veins on Palm of hand by thumb and center spasms non stop. No pain. What could it be?

I have gotten blood draw twice on same arm now I feel thirsty and veins on Palm of hand by thumb and center spasms non stop. No pain. What could it be?

Unlikely blood draw: Unlikely from blood draw as they only take a small amount (1 tablespoon) so unlikely dehydrated. If a simple uncomplicated blood draw then there should have been no damage to tendons or nerves. ...Read more

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Have a history of blood clots in arm, leg, and pulmonary embolism. Last night I had a blood draw, today huge hematoma that is painful. Possible clot?

Have a history of blood clots in arm, leg, and pulmonary embolism. Last night I had a blood draw, today huge hematoma that is painful. Possible clot?

No: A hematoma occurs when blood leaks out of the blood vessel that was punctured. There is a pool of blood in the adjacent tissues and, since blood is irritating, it hurts. Because of your hx, I'm guessing you might be on an anticoagulant ("blood thinner")? If so, it predisposes you to a hematoma. Hematomas hurt but get better on their own. There's no risk of the clot "traveling" anywhere. ...Read more

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How long for nerve pain at blood draw site, i.e forearm, that extends to palm, little, ring fingers to resolve? 7 days since the draw. Signs to watch for?

It should resolve: Quickly. If not see your doctor for evaluation. It's unlikely that a nerve was injected or pinched, but there could be swelling from the blood draw if it leaked into the tissue causing inflammation around the nerve. So, you may benefit from applying warm compress around the site, and seeing if that helps or not. Using anti-inflammatory OTC meds. If it's numb, tingling, painful, please see your Dr! ...Read more

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Felt extr pain during blood draw Fri in left forearm. Now shock-like pain in that spot radiating to wrist when I flex. Should I worry and/or visit doc?

Felt extr pain during blood draw Fri in left forearm. Now shock-like pain in that spot radiating to wrist when I flex. Should I worry and/or visit doc?

Don't worry: Sounds like the phlebotomist got too close to the nerve which isn't uncommon. There is some inflammation from the needle but it should go away in a few days. There isn't anything to do at this point. ...Read more

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Left leg calf pain felt yday and today evening. Had nerve injury from blood draw in left forearm 7 days ago, still painful. Are the two events related?

Left leg calf pain felt yday and today evening. Had nerve injury from blood draw in left forearm 7 days ago, still painful. Are the two events related?

Can't see relation: Can't see a relation between these two. The blood draw injury should not cause symptoms in your calf. What kinds of things make your calf feel worse? Movement? Compression? Standing? Is there any swelling there? Let us know if we can help, or have someone look at it. ...Read more

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I had a routine blood draw at my OB/GYN office last Tuesday. Once the needle went in I immediately felt as shooting pain in my forearm up to the base of my hand. I continue to feel tingling in the palm of my hand and something akin to electric pricking in

I had a routine blood draw at my OB/GYN office last Tuesday. Once the needle went in I immediately felt as shooting pain in my forearm up to the base of my hand. I continue to feel tingling in the palm of my hand and something akin to electric pricking in

Nerve pricked: The needle probably pricked a nerve when it was inserted, causing the shooting pain in your forearm. The continued tingling in your palm is due to injury to the nerve. Peripheral nerves heal slowly but it should eventually heal completely and the tingling will stop. This is something that could not have been avoided, it is a risk anytime blood is drawn. Don't worry, it will resolve. ...Read more

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Had blood drawn a week ago which really hurt. Now I have some sorta muscle pain or cramps and a rash came out on my forearm. I'm scared its thrombosis?

Had blood drawn a week ago which really hurt. Now I have some sorta muscle pain or cramps and a rash came out on my forearm. I'm scared its thrombosis?

Depends: Injury of any tissue can hurt for some time. A little black and blue is also possible. If it has swollen up, red, warm, fever- it could be sign of inflammation or infection around the area. Small superficial thrombophlebitis is local inflammation, gets better with warm pads elevation - are not as serious as deep vein thrombosis. If it does not better, might be a good idea to see your doctor. ...Read more

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I was diagnosed with fibro without having blood tests but my hair is falling out I have rashes on my arms and I'm so weak could it be lupus?

I was diagnosed with fibro without having blood tests but my hair is falling out I have rashes on my arms and I'm so weak could it be lupus?

Not sure: Diagnosis fibromialgia does not require blood work. However it is important to rule out thyroid disorders and autoimmune causes with clinical and laboratory evaluations. ...Read more

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I got a pretty bad gash on my arm and when I was washing away the blood I noticed a small almost allergic rash following the trail of blood?

I got a pretty bad gash on my arm and when I was washing away the blood I noticed a small almost allergic rash following the trail of blood?

No Known skin diseas: Dear jdV,
In 41 years of dermatology practice, I have never heard this complaint. There should be no allergic reactions to your own blood in any way shape or form. It would be nice to see a picture of this rash, And it would be hard to say what might've cause the coloration, But some people actually scrubbed the area around the wound and it will cause some temporary redness which looks like a rash ...Read more

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My whole body is itchy but I get a small bumpy rash lower back inner right arm in between boobs. They are kinda like blood blisters. Please help.

My whole body is itchy but I get a small bumpy rash lower back inner right arm in between boobs. They are kinda like blood blisters. Please help.

Topical HC cream: There many potential answers but if you had this for more than a week, you should consult a dermatologist. In the meanwhile try otc Hydrocortisone cream to see if this helps.
This is the time of the year people tend to itch more from dry skin. Start applying a skin moisturizer immediately after bathing and see if this reduces the itch. ...Read more

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I got a rash today on my arms and stomach and I took plan b on monday. Is it an effect from the pill? & if I were to go to the doctor would it be obvious I took this pill through a blood test?

I got a rash today on my arms and stomach and I took plan b on monday. Is it an effect from the pill? & if I were to go to the doctor would it be obvious I took this pill through a blood test?

Plan B: Yes, your skin lesions may be related to this medication. If they are not gone within a week, I would consult your physician. It is unlikely that a blood test for progestogens would be able to detect the drug at this point. ...Read more

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I have had a red streak/dotted rash on my legs, feet, torso, arms and hands for about 6 weeks now. It will fade in 3-5 day. Blood work normal?

I have had a red streak/dotted rash on my legs, feet, torso, arms and hands for about 6 weeks now. It will fade in 3-5 day. Blood work normal?

Needs to be seen: Rashes really need to be seen in order to make a determination of the cause and proper treatment. Perhaps a HealthTap virtual consult would be helpful, since you can submit photos. ...Read more

Dr. Cornelia Franz
1,059 Doctors shared insights

Rash (Definition)

A rash is a change to skin condition which can affect color, appearance, or texture. It may or may not ...Read more


Blood Draw (Definition)

Needle removal of blood from your arm by a ...Read more