Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties

189 Doctors Online
Doctor Image
Dr. Andrew Rynne

Family Physician

Exp 50 years

I will be looking into your question and guiding you through the process. Please write your question below.

What causes itchy rashes all over the arms after blood donation?

Hi,I gave blood on Saturday and the next day I woke up with a rash all over both of my arms. It is very itchy. The inside of my elbows are both very red and warm. This is the third day that they are red, blotchy and itchy. Could this be a reaction? I have given blood in the past and this has never happened.
Tue, 10 Jul 2018
Report Abuse
Dermatologist 's  Response
Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice.

Its unlikely for a rash to come after blood donation, simply because nothing is injected in your arm, apart from some amount of normal saline if at all the vein from where the blood is drawn is blocked. You can take an anti allergic tablet twice a day for 3-4 days to help eliminate the itch. Subsequently, I would suggest you get the rash reviewed by the concerned doctor as well.

Hope I have answered your query. Let me know if I can assist you further.
I find this answer helpful
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]
Share on

Related questions you may be interested in

doctor1 MD

I gave blood on Sunday morning, later that night I had a red bumpy rash near the area that the needle was now it is Friday and the rash is further down my arm closer to my forearm. I was alo bitten by something in several spots on the same side of my body that day. I woke up with 3 bite marks on my left arm 3 near my left hip/thigh nod 3 bites on my buttocks same side. Is the red bumpy rash cause from the blood donation or some other reaction? The bumps are small, itchy and seem to have moved down my arm and the bite marks are going away with cortisone cream. Any help would be appreciated. Thank you. Robin

doctor1 MD

I gave blood today at about 2 pm, I took the bandages off about 5 pm. About 5:45 pm I went outside and started cleaning out my car (picking up trash and wiping console clean) when i noticed a large amount of blood dripping from my arm. It got everywhere and almost soaked a small wash cloth. My mom put a bandage on it but I want to know if i should be concerned? I have a sickle cell trait, and have been diagnosed with anemia in the past but my iron was normal today.

doctor1 MD

Hi I donated blood last december ( i know long time ago) and after that I noticed a bump right where the blood was drawn out from and its painful if I touch it hard. What could this be? its still there and im scared to donate from that arm because of it.