Conditions · Face · Bumps & Growths

Sebaceous Hyperplasia

Sebaceous hyperplasia is an overgrown oil gland: a small, soft, yellowish or skin-coloured dome — often with a central dimple — that appears on the forehead, cheeks or nose from midlife onward. It is benign, it is not acne, and no amount of squeezing or skincare removes it, because it is not a blockage; it is the gland itself, enlarged.

WhatsApp Dr Sin Yong →
The Doctor Other Doctors Train With
International KOL & trainer for 14+ device brandsTrained 500+ doctors across AsiaMBBS (NUS) · MRCS (Edinburgh) · Dual UK Masters with DistinctionEvery assessment personally by Dr Sin Yong

Key Facts

What it is
Benign enlargement of normal sebaceous glands around a follicle
The signature look
2–5 mm soft yellowish papule with a central dell (umbilication) — a tiny doughnut
Typical sites
Forehead, cheeks, nose — the highest-density sebaceous zones
Who gets it
Common from the 40s onward; earlier with strong family tendency or oily skin types
What it never does
Turn malignant — sebaceous hyperplasia is benign; but look-alikes exist, so diagnosis matters
Why squeezing fails
There is no plug to extract — the bump is gland tissue, not trapped material

What these bumps actually are

Each papule is a cluster of enlarged sebaceous lobules crowded around a central follicular opening — which produces the characteristic yellowish dome with a dimpled centre. With age, the hormonal signalling that regulates gland turnover shifts, and in predisposed skin some glands respond by hypertrophying [1]. They grow slowly, multiply gradually over years, and sit precisely where makeup is hardest to smooth — the forehead and mid-cheeks — which is usually why patients finally ask about them.

Pimple, milium, or something to biopsy?

Sebaceous hyperplasia never comes to a head, never resolves, and never yields anything to pressure — three ways it declares it is not acne. A milium is firm, white and keratin-filled rather than soft and yellowish. The distinction that matters medically: an early basal cell carcinoma can mimic a sebaceous hyperplasia papule, and the pearly look-alike is the reason a physician should lay eyes (and where needed a dermatoscope) on any new or changing bump before anyone burns it off [1]. Diagnosis is quick; skipping it is how the wrong lesion gets treated cosmetically.

What actually works

Physical removal of the overgrown gland tissue. The literature supports several in-clinic modalities — electrocautery, laser ablation and other energy-based approaches — with recent work exploring focused ultrasound specifically for sebaceous hyperplasia [1]. Removal is precise, quick and done under magnification; the practical points are lesion-by-lesion treatment, the possibility of new papules forming elsewhere over the years (the tendency is yours for life), and technique that respects the surrounding skin — this sits within Dr Sin Yong's lesion-removal work alongside platforms described on the DEKA Centre of Excellence page. Oily-skin maintenance via the SkinRev programme manages the terrain, not the lesions.

What doesn't work

Extraction — there is nothing to extract. Retinoid creams may slightly flatten early papules but do not remove established ones. Pore strips, scrubs and “deep-cleansing” facials address blockages; this is not a blockage. And home cautery pens or acid spot treatments on the face trade a benign 3 mm bump for a permanent scar — the one outcome worse than the bump.

“Sebaceous hyperplasia is not a blocked pore — it is the gland itself, enlarged. You cannot squeeze out something that is made of you.”

— Dr Sin Yong

Questions Patients Actually Ask

Are these bumps dangerous?+

Sebaceous hyperplasia is benign and stays benign. The caveat is the look-alike problem: early basal cell carcinoma can mimic it, so new or changing bumps deserve a physician's diagnosis first.

Why do they have a dimple in the middle?+

The enlarged gland lobules ring a central follicular opening — the dimple is that opening, and it is a useful diagnostic clue.

Can skincare shrink them?+

Topicals cannot remove established gland overgrowth. Retinoids may modestly soften early lesions; removal is physical.

Does removal leave a scar?+

Done properly, with the right energy and depth, the mark is typically minimal — far less visible than the bump. Technique and aftercare determine the result, which is why this is clinic work.

Will more appear after removal?+

Removal clears the treated lesions; the underlying tendency remains, and new papules can arise elsewhere over the years. Periodic tidy-up sessions are the honest expectation.

Are they caused by not cleansing properly?+

No. They reflect gland biology and age-related signalling, not hygiene. No cleanser prevents them.

References

  1. Treatment of Sebaceous Hyperplasia by High-Frequency Focused Ultrasound (HIFU): A Comprehensive Exploration with Clinical Insights — Journal of Clinical Medicine (PMC).
  2. Sebaceous Hyperplasia — DermNet NZ.
Follow Dr Sin Yong
InstagramTikTokYouTubeThreadsXLinkedInFacebook
Dr Sin Yong · Every assessment personally performed
WhatsApp Enquiry