HomeAnswersGeneral Medicineneedle injuryPricking my finger resulted in blackish discoloration. Why?

How long does it take for lancet needle wound to heal?


The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Answered by

Dr. Nagaraj

Medically reviewed by

iCliniq medical review team

Published At February 6, 2023
Reviewed AtOctober 13, 2023

Patient's Query

Hi doctor,

This might sound like a silly question, but something unusual has happened with my finger. I was testing my blood sugar using a lancet (I am not diabetic but have been feeling hypoglycemic or lightheaded when hungry; therefore, I tested my glucose). My sugar readings were normal. However, after the lancet prick, I noticed my finger hurt more than usual. It looked slightly dark, and hours later, the end of my finger was throbbing, and there looked to be a deep red lesion. Should I keep an eye on this, or does it need antibiotics?


Answered by Dr. Nagaraj


Welcome to icliniq.com.

I understand your concern.

You may have gone deeper with a lancet. It usually happens when someone does it on themselves and is very new to doing so. This is because they need to become more familiar with the pressure needed to get the blood for testing. Good to know the sugar levels are normal. You need not have to do much about it. It usually gets better in 24 to 48 hrs. I hope you applied pressure after pricking to help the blood vessels seal, as it is already 6 hours, so there is no need to do anything. Also, I assume it was a sterile use and threw away sterile lancet used for pricking. Hence antibiotics are usually not needed. Hope this helps.

Please take care.

Patient's Query

Hi doctor.

Thank you for the reply.

Here is another picture where the raised area's redness can be seen more clearly. Is this still fine? I do not want to seem like I am making a fuss. I suppose I worry a lot.

Answered by Dr. Nagaraj


Welcome back to icliniq.com.

Before I suggest it, let me know if it is a sterile, single-use lancet. If yes, there is no need to worry. As I said earlier, you have gone a little deep while pricking hence the result. But still, it is fine and usually resolves by itself in 24 to 48 hours. If you feel too much pain, you may take over-the-counter painkillers. No need to worry much.

Take care.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Nagaraj
Dr. Nagaraj


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