My foreskin has a purple boil/ bump

My foreskin has a purple/white boil or bump that hurts sometimes when I press it, it appeared many months ago and hasn’t disappeared, what is it ? Do I need to get it checked ? 

It's hard to say without seeing a pic.  If you want to add a pic, this should help you add images:

https://patient.uservoice.com/knowledgebase/articles/402861-how-do-i-add-an-image-to-my-post

You'll probably need to use a PC or laptop rather than a phone or tablet.

​If you don't want to add a pic, that's fine, but if you've had it for many months, then I'd get it checked out if I were you.  You could either see your GP, or if you're in the UK, you could go to a genitourinary medicine (GUM) clinic - google "GUM clinic near me" for details.

If you could update this thread and tell us what the doctors say, it would be appreciated.  Good luck.

here is a picture of the boil

I don't know what that is, and it isn't clear how big it is, but I'd definitely get it checked out by a doctor if I were you.  It doesn't look like an STI, and could well be something harmless, but you need to get it looked at.

its small not very big, size of a small water droplet, also i'm a virgin so i doubt it is an STI 

I thought it might be larger than that, and I suspect it's probably harmless, but I still think you should get it checked out.

I don't know how old you are, but if you're in the UK, some places have GUM clinics for under-25s.  Most people there will be for STI testing, or asking about contraception, but they also cover general advice about sexual health, and there will probably be a urologist there.  You'd probably get an appointment sooner than with a GP too, and some places take walk in appointments.

​If you're not in the UK, you could see your GP, or a urologist.

I agree with ml66uk, even though it's small it doesn't look like something you could deal with yourself with over the counter products.