Nodular Acne: Symptoms, Causes and Treatment

Nodular acne is one of the more severe forms of acne and sits alongside cystic acne on the acne severity spectrum. If you regularly develop firm, painful lumps beneath your skin that last for weeks, understanding what they are can help you make informed decisions about your skin.

Unlike ordinary spots, nodular acne develops deep within the skin and carries an increased risk of permanent scarring. Recognising the signs early and seeking appropriate assessment can make a significant difference.

What is nodular acne?

A nodule is a large, firm, inflamed lesion that forms deep beneath the skin's surface.

Unlike a cyst, which contains fluid and often feels softer, a nodule feels solid when touched. Nodules develop because inflammation extends far deeper than it does in ordinary acne, affecting the surrounding skin tissue.

Many people experience both nodules and cysts at the same time, and together they are considered signs of severe acne.

Nodules often remain for several weeks and commonly recur in the same areas of the face, jawline, chest or back.

What causes nodular acne?

Nodular acne develops through the same underlying processes responsible for all forms of acne:

• Increased oil production.
• Blocked hair follicles.
• Naturally occurring skin bacteria within blocked pores.
• A strong inflammatory response.

When inflammation spreads deeper into the skin, firm nodules begin to develop beneath the surface.

Hormonal sensitivity is often an important contributing factor, particularly in adults, although nodular acne can affect people of all ages.

How is nodular acne different from ordinary acne?

Ordinary spots usually develop close to the skin's surface and often heal within several days.

Nodular acne develops much deeper beneath the skin, resulting in:

• Firm, solid lumps.
• Greater inflammation.
• Longer healing times.
• Increased discomfort.
• A higher likelihood of permanent acne scarring.

Because the inflammation is deeper, nodular acne should be regarded as a more serious presentation than mild or moderate acne.

What is the difference between nodular acne and cystic acne?

Although they are closely related, there are important differences.

A nodule is firm and solid because it contains inflamed tissue.

A cyst is generally softer because it contains fluid beneath the skin.

Many people experience both simultaneously, making it difficult to distinguish between them without assessment. Both forms carry an increased risk of permanent scarring and should be taken seriously.

Why is it important to recognise nodular acne?

Identifying nodular acne early is important because deep inflammation can damage the skin before visible scars begin to develop.

Persistent nodules should not simply be ignored or repeatedly squeezed.

Early assessment allows the severity of the acne to be recognised and appropriate management to begin before permanent skin changes occur.

Can nodular acne scar?

Yes.

Although not every nodule leaves a scar, nodular acne carries a significantly higher scarring risk than superficial acne because inflammation develops much deeper within the skin.

Avoiding picking or squeezing lesions and seeking assessment early can help reduce the likelihood of permanent acne scars.

Frequently Asked Questions

What is the difference between a nodule and a cyst?

A nodule feels firm and solid beneath the skin, while a cyst is usually softer because it contains fluid. Both are considered signs of severe acne.

Do nodules always leave scars?

Not always, but nodular acne carries a much greater risk of scarring than ordinary spots due to the depth of inflammation.

Why do nodules keep appearing in the same place?

Deep inflammation can continue to affect the same hair follicle and surrounding tissue, leading to repeated breakouts in the same location.

Should I squeeze a nodule?

No. Squeezing nodular acne usually increases inflammation, delays healing and raises the risk of permanent scarring.

Can nodular acne improve?

Yes. Although it is a severe form of acne, nodular acne often responds well once the underlying causes are properly identified and managed.

Reviewed by Dr Tara Treacy, GP with a special interest in dermatology (IMC 411337).

Last reviewed: 16/07/2026.

General information only. It does not replace an individual medical assessment.