Acne is a common skin condition that can appear in various forms. The main types include:
1. Whiteheads: These are closed clogged pores that appear as small, white bumps on the skin.
2. Blackheads: Open clogged pores that look dark or black due to oxidation.
3. Papules: Small, red, tender bumps caused by inflammation or infection in the hair follicles.
4. Pustules: Similar to papules but filled with pus, appearing as red circles with white or yellow centers.
5. Nodules: Large, painful lumps beneath the skin's surface, often requiring medical treatment.
6. Cysts: Deep, painful, pus-filled lumps that can cause scarring if not treated properly.