They are merely because of a cluster of pigmentation cells under your skin.
Many people have several moles, ranging between 10 to just under 40 of them, per Everyday Health.
By extension, moles on different parts of the body have now picked up different connotations.

One on your chin?
That shows how caring you are, perCosmopolitan.
But how about your elbow?

What might a mole there mean?
Are elbow moles good luck or bad luck?
Thepositive connotations of elbow molesdon’t stop there.
A mole on your elbow could also mean that you enjoy helping people and providing support for them.
Thegood luckattached to the elbow mole spreads further down to the hands.
But this seems to apply only to men.
Women with moles on their hands are ascribed with a penchant for spending and flamboyance.