![Does anyone have any idea what this indent in the upper middle of my shaft is? First](https://i.imgur.com/moHeqh8m.jpg)
Does anyone have any idea what this indent in the upper middle of my shaft is? First pic is an older picture (at least a year old) but you can see the indent. 2nd pic is now, just not as hard. It’s gotten a bit worse lately and it’s also making my skin ne
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