Ever Wonder Why Certain Body Parts Itch? — Part 1

Ever had an itch you couldn't scratch? How about ones you shouldn't scratch?

Jodian Marie Thomas, MS, Bsc, Asc
9 min readJan 17, 2023

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Image by Nikolay on Istock

Firstly, please humor me. I hope the image made you smile. I typed in itch, in google, and it was the first image that came up. So, I just had to. It made me chuckle, I hope you did as well. Unexpected smiles and laughs are great life vitamins, I hear.

Itching, also known as pruritus, is certainly one of the banes of our existence, is an uncomfortable sensation that prompts the desire to scratch. It is a common experience that affects people of all ages and can be caused by a wide range of factors. You know the feeling, that insatiable urge to scratch that just won’t go away. Whether it’s the bottom of your feet, the back of your neck, or that one spot on your elbow that you just can’t reach, itching is the worst. But why does it happen? And why does it seem to affect some parts of our body more than others?

Why do our bodies itch?

It is a neurological response to a stimulus? Is it our body's way of telling us something is wrong or right? Is it a natural and autonomic response? Is there a difference between when your left palm itch from the right palm? What does it mean when our feet' soles itch? Is it an indication of medical diagnostics? Is…

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Jodian Marie Thomas, MS, Bsc, Asc

Research Coordinator and Experimental Physicist. My love for reading, communicating, sharing thoughts, ideas, advice and little ‘picker-upers’ brought me here.