Nodule
Nodule — a large, firm, inflamed lesion that develops deep within the skin, often feeling like a solid, painful lump beneath the surface. Nodular lesions represent a more severe form of acne because the inflammation extends into the deeper layers, and they carry a higher risk of scarring.
Key points
- Nodules form deeper in the skin than papules or pustules and lack a visible pus head.
- They are typically firm to the touch and can be painful or tender.
- Because inflammation reaches deeper tissue, nodules are more likely to leave scars.
- They often persist for weeks and generally do not resolve with over-the-counter products alone.
- Nodular acne is usually considered a condition that warrants professional dermatological care.
Frequently asked
How is a nodule different from a pustule?
A nodule is a large, solid, deep-seated lump without a visible pus center, while a pustule is a smaller, surface-level lesion with visible pus.
Can nodular acne be treated at home?
Nodules sit deep in the skin and often do not respond to over-the-counter products, so this type of acne is best assessed and managed by a dermatologist.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
