A papule is a small, solid bump on the skin that is less than 1 centimeter in diameter. It can have distinct or indistinct borders and can be caused by various factors, including inflammation, infection, or a buildup of keratin.
Papules can be:
- Red, tender, painful, or irritating.
- Caused by acne, eczema, psoriasis, or other skin conditions.
- Benign or cancerous.
If you notice a papule on your skin, it's important to consult a doctor to determine the cause and receive appropriate treatment.