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Real members of DiabetesTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.

Why is it that when I check my blood sugar each morning it's higher when I check it on my right hand than it is from my left hand?

A DiabetesTeam Member asked a question 💭
Kansas City, MO
February 12
 · 
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A DiabetesTeam Member

@A DiabetesTeam Member

You are very welcome Bill 🤗

February 12
A DiabetesTeam Member

Thank you , very helpful 👍😁

February 12
A DiabetesTeam Member

@A DiabetesTeam Member

Hello Bill

Post another question exactly as you did the previous one.
I have been told that you should not prick the tips of your fingers, as it damages blood vessels.
I’ve also read that you should only prick the sides of your fingers, index, middle and ring fingers, in line with the nail.
But some diabetics prick anywhere that they can get blood.
I’ve found that if I wrap my right hand around my left wrist, and apply pressure, for a minute or so, I get a good blood flow.
I also hold my left hand under hot running water.

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WHAT FINGER OR HAND IS BEST TO PRICK TO CHECK FOR A GOOD READING OF BLOOD SUGAR

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February 12
DiabetesTeam

Why do blood sugar readings differ between hands?

It's completely normal to get slightly different blood sugar readings from each hand. The main reason is blood flow differences between your hands.

Your dominant hand (often the right hand for most people) typically has better circulation than your non-dominant hand. This Show Full Answer

Why do blood sugar readings differ between hands?

It's completely normal to get slightly different blood sugar readings from each hand. The main reason is blood flow differences between your hands.

Your dominant hand (often the right hand for most people) typically has better circulation than your non-dominant hand. This difference in blood flow can lead to slightly varying glucose readings between hands.

Other factors that can cause variations between hands include:

* The size of the blood drop used for testing
* Which specific fingertip you use
* How well blood flows to each finger at that moment
* Temperature differences in your hands

To get the most consistent readings, try these tips:

* Warm your hands before testing if they feel cold
* Use enough blood for each sample
* Avoid squeezing your finger too hard to get blood
* Wash and dry both hands thoroughly before testing

Small differences between hands are usually nothing to worry about. If you notice large or consistent differences, it's worth mentioning to your doctor to ensure your meter is working properly.

February 12
A DiabetesTeam Member

what hand/finger is the best to check for a good reading?

February 12 (edited)

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