For about a year now i hve had red bumps on my butt and they won't go away. idk what cause them. i do run and sweat but they r still there when i stop?

See a doctor: I would recommend seeing a doctor since it has lasted this long.

Bumpy Butt: "bumpy butt" is often caused by a problem called folliculitis. Of course without seeing it there is no way to tell you the real nature of this problem. Sometimes this is actually a problem which spreads and gets much more severe called hidradenitis suppurativa. This is a problem which requires sometimes long-term antibiotics. In folliculitis we use antibiotics for a short period. See a dermatologi.