Anyone have calcium deposits on their body and do they sound like this?

I have this weird little bump on my thigh, i’ve had it for about 8 years now, when i first got it i pricked it with a pin thinking it was an in grown hair and it bled heaps like one, but is still there, it hasn’t grown in fact it’s gotten a bit smaller now, but does it sound like a calcium deposit?
It’s small – like a pin head, and bulbous feeing and it feels hard.

any ideas?