ARe moles genetic or not?

My aunt says that i should go to a dermatologist to get my skin chesked out because i hve more than 50 moles on my body. but my dad and grandparents also have many moles and not one has gotten skin cancer.

none are gross looking but one is medium sized and very dark almost black.

The number of moles a person has depends on genetic factors and on sun exposure. Babies for example, are born with flawless skins and as they get exposed to the sun, they develop the moles.
If you have fair skin, are prone to sunburn, and have over 20 (all over) you are a candidate for skin cancer. This doesn't necessarily mean you'll get it, just that you have to be extra careful and suspicious of new moles or ones that have changed in color or diameter. And as logic tells, try to keep out of the sun whenever you can.

Yes, moles are genetic. Often you will find that you may even have a mole just like another member of your family. (my mom and I have matching moles on our necks)

I have many many moles on my body as well (though I've never counted them). It can be a sign that you are more susceptible to skin cancer, especially if you are fair skinned as well. And as long as your moles don't change color or shape, they're fine. If you ever notice one looking odd, it never hurts to have it checked out.

they do tend to run in families.i seem to have inherited them from my mom. generally, it's said, that they are of no concern unless they begin to change color or shape but don't assume that b/c your relatives have had no issues with there's that you won't. if you see a change in appearance, have them checked