What should you know about back milia?

A milium forms when keratin, a protein found in the outer skin, becomes enclosed just beneath the surface. Milia feel firm and often look white, cream or skin-coloured. Unlike acne spots, they do not arise from an inflamed, oil-filled pore and usually lack surrounding redness or tenderness.

The back is a less familiar location than the face, so similar-looking bumps may instead be clogged pores, folliculitis or another small cyst. A dermatologist can examine their surface, distribution and texture when the diagnosis is unclear.

Leave the bumps intact and wash the area gently. Squeezing or piercing them at home can injure the skin, introduce infection and leave dark marks or scars, especially where clothing rubs the back. Avoid harsh scrubs and note whether a heavy body product seems to coincide with new bumps.

Persistent or bothersome milia can be assessed professionally. Depending on the diagnosis and the skin involved, a clinician may discuss a topical retinoid or remove individual cysts with a sterile procedure. Treatment choice should account for irritation risk, pregnancy, current medicines and any tendency to pigment after inflammation.

Book a routine skin review if the bumps persist, multiply, repeatedly become irritated or do not resemble firm superficial cysts. Seek earlier care for increasing pain, warmth, swelling, pus, spreading redness or fever, because those features fit inflammation or infection rather than uncomplicated milia.

A bump that bleeds without being picked, develops an open sore, changes colour or grows noticeably also deserves examination. These changes do not identify a particular diagnosis on their own, but they should not be managed by home extraction.

Ask whether the bumps are milia or a follicle-related condition, whether any body product may be contributing, and whether observation is reasonable. If treatment is offered, ask how it works, what irritation or pigment change to watch for, and how to care for the area afterward.