The woman took to Reddit, telling the thread that the mark won’t ‘go away’

A woman who showed an innocent image of her thumb was told to see a doctor immediately by concerned social media users.

There are some things that happen to our bodies that might seem strange, yet harmless.

Yet, as a women took to Reddit to show off an odd mark on her thumbnail, people were quick to tell her to seek immediate medical advice.

The woman, who posted to the thread r/mildlyinteresting, attached a photo of her thumb which had a light brown line running vertically down it.

“Dark Tan line showed up on my thumb nail, won’t go away.”, she wrote.

You might think it will disappear on its own and there isn’t anything particularly dangerous about a line on a thumbnail, but others disagree.

Instantly, the poster was inundated with warnings of a variety of medical conditions it could be.

One person wrote, sharing their own experience which led to a scary diagnosis: “Hey op. I have this on my pinky finger. Went to a dermatologist. Mine was just an error in my code but they do so it can be an early sign of cancer. A closer look at it by a dermatologist will help you. My GP referred me to see a dermatologist. Best of luck.”