Skin lesions can appear in a variety of ways, depending on the underlying cause. Here are some common characteristics:
Types of Skin Lesions
- Macules: Flat, discolored areas of skin that are less than 1 cm in diameter. They can be brown, red, white, or black.
- Papules: Small, raised bumps that are less than 1 cm in diameter. They can be firm or soft, smooth or rough.
- Nodules: Larger, raised bumps that are more than 1 cm in diameter. They can be firm or soft, smooth or rough.
- Plaques: Flat, raised areas of skin that are larger than 1 cm in diameter. They can be scaly or smooth.
- Vesicles: Small, fluid-filled blisters that are less than 1 cm in diameter. They can be clear, yellow, or red.
- Bullae: Large, fluid-filled blisters that are more than 1 cm in diameter. They can be clear, yellow, or red.
- Pustules: Small, pus-filled bumps that are less than 1 cm in diameter. They can be white, yellow, or red.
- Scales: Flakes of dead skin that can be dry or greasy. They can be white, gray, or yellow.
- Crusts: Dried serum, blood, or pus that can be yellow, brown, or black.
- Ulcers: Open sores that extend into the deeper layers of skin. They can be shallow or deep, and they can be painful.
Examples
- Acne: Papules, pustules, and nodules.
- Eczema: Red, itchy plaques with scales.
- Psoriasis: Red, scaly plaques.
- Warts: Papules that are usually flesh-colored, brown, or gray.
- Skin cancer: Macules, papules, nodules, or ulcers that can be different colors.
When to See a Doctor
If you have a skin lesion that is:
- Changing in size, shape, or color
- Itching, burning, or painful
- Bleeding or oozing
- Growing rapidly
- New or unusual
It is important to see a doctor to get a diagnosis and discuss treatment options.
