What causes these bumps (down there)?

I don't even know if: You are a man or a woman. If you have genital lesions it will require an in person evaluation to accurately diagnose ; treat this.

Visual DX: Hi, it’s hard to say without a picture but there is a great app that may be able to help you get a diagnosis without being seen in person by a dermatologist. The app is called VisualDX and is one of the best, if not the best out there. Many clinicians, including myself, use it. Just snap a photo and it gives you a list of possible diagnoses. Good luck!