Comedonal Acne vs Sebaceous Hyperplasia

Acne in which blackheads and whiteheads are the main lesions. Harmless enlargement of oil glands, often on the adult face.

Research updated 2026-10-23

AI-generated educational illustration: Close adult forehead with small skin-colored closed comedones and several open comedones, minimal inflammation.

A natural cheek close-up with a few small pale-yellow papules with shallow central pores.

Key differences What is it?What it looks like Diagrams When it starts Triggers Daily Care Treatment Outlook Complications When to get help Questions

Key differences

The same eight facts on every condition comparison.

Usual age

Teens and adults

40 and over

Where

Forehead, nose, chin

Forehead and cheeks

Main sign

Blackheads and whiteheads

Small yellow bumps with a dip

Itch or pain

Neither

Contagious

Long term

Controlled with retinoids

Stays until treated

Scars

Rarely

Who gets it

Oily or acne-prone skin

Middle-aged and older adults

What is it?

Comedonal Acne

Sebaceous Hyperplasia

What is it?

What it is
Acne in which blackheads and whiteheads are the main lesions.

What it is
Harmless enlargement of oil glands, often on the adult face.

What it looks like

Comedonal Acne

A forehead with many tiny skin-colored bumps and scattered dark pore openings.

Comedonal Acne The forehead has a mixture of pale raised bumps and tiny dark dots.

Sebaceous Hyperplasia

A forehead with several pale raised bumps, each with a small central depression.

Sebaceous Hyperplasia Rounded pale-yellow bumps have a shallow indentation in the center.

Skin tones

In the skin

Oil and shed skin cells block hair follicles with relatively little visible inflammation. An open plug forms a blackhead, while a covered plug forms a whitehead.

Oil-gland lobules enlarge around a follicular opening. The enlarged gland creates a small bump, often with a central depression.

When it usually starts

010203040506070+

Comedonal Acne. Often begins around puberty; adult acne can persist or start later.

Sebaceous Hyperplasia. Usually develops in middle or later adult life.

Causes and triggers

Causes

Oil and shed skin cells block hair follicles; inflammation can develop around them.

Enlarged sebaceous-gland lobules surround a follicular opening.

Risk factors

Puberty, Family tendency, Oily or pore-clogging products

Increasing age, Immune suppression in some cases

Trigger

● Comedonal Acne

● Sebaceous Hyperplasia

Pore-clogging products

Can contribute

Not listed

Friction

Can contribute

Not listed

No established short-term flare trigger

Not listed

Not a typical trigger

Daily Care

Comedonal Acne

Sebaceous Hyperplasia

Daily care

Habits that help

Wash gently, up to twice daily and after sweating
Use lukewarm water, a mild cleanser and your fingertips; pat dry.
Choose non-comedogenic moisturizer and sunscreen
Moisturizer helps you tolerate treatment; use broad-spectrum SPF 30 or higher on exposed skin.
Remove makeup gently before bed
Choose products labeled non-comedogenic or oil-free and keep makeup tools clean.
Keep the routine simple and consistent
Give the agreed treatment time to work instead of changing products every few days.

Avoid

Avoid: Picking, squeezing or home extraction
Manipulating spots increases inflammation, infection risk and lasting marks or scars.
Avoid: Scrubs and several irritating actives at once
Burning, peeling and raw skin are reasons to simplify the routine and review how treatment is being used.

Habits that help

Leave a stable, clinician-confirmed benign lesion alone
It may not need treatment if it is comfortable and not changing.
Reduce rubbing from clothing, shaving or hair tools
Repeated injury can make a harmless lesion sore or cause bleeding.
Notice meaningful changes without repeatedly squeezing it
Arrange examination for rapid growth, persistent bleeding or a change in appearance.
Use a gentle, non-comedogenic skin routine
These bumps are enlarged oil glands rather than plugs that can be squeezed out.

Avoid

Avoid: Cutting, burning, freezing or acid removal at home
Home removal can cause infection, scarring and delay the correct diagnosis.

Treatment differences

Evidence labels come from each condition’s own treatment list.

Treatment

● Comedonal Acne

● Sebaceous Hyperplasia

Over-the-counter

Adapalene

Listed

Helps prevent new comedones; improvement is gradual. Avoid retinoids during pregnancy.

Paula's Choice 2% BHA exfoliant, La Roche-Posay Effaclar cleanser and a CeraVe psoriasis cream pump

Salicylic Acid

Listed

Can help clear surface plugs; stop if it causes persistent irritation.

None listed

Procedures

None listed

Electrocautery or laser

Listed

A clinician may treat bothersome lesions; recurrence and scarring are possible.

Outlook

Long term

Blocked pores can improve with consistent treatment, but recurrence is common. Maintenance may be needed; increasing irritation does not make acne clear faster.

Confirmed sebaceous hyperplasia is harmless and does not need treatment. Existing bumps may persist, and new or recurrent bumps can appear after cosmetic treatment.