Skin cancer signs could be evident on scalp but get mistaken for dandruff. Check the symptoms you should not ignore

You may check your face, arms and other visible parts of your body for unusual spots, but the scalp is one area that can easily be forgotten. That becomes more important when hair is thinning or has already been lost, since more of the scalp is directly exposed to sunlight. But when a change on the scalp keeps coming back, does not heal or starts looking different, it may be worth taking a closer look.

The scalp is one of the areas where skin cancer can develop, although it is often forgotten during routine skin checks because hair can hide changes. Healthline says around 13% of skin cancers occur on the scalp.

A patch that looks like dandruff may need checking

Skin cancer on the scalp does not always appear as an obvious lump. It can show up as a rough, scaly or crusted patch, which is one reason it can be mistaken for dandruff or an irritated scalp.


A sore that does not heal, heals and then returns, or starts bleeding is another warning sign. Other changes can include a new bump, a firm red growth, a thickened area of skin or a patch that becomes tender.

Healthline lists flesh-coloured or pearly bumps, persistent sores and scaly pink or red patches among the possible signs of basal cell carcinoma. Squamous cell carcinoma can appear as a firm red bump, an open sore or a thick, crusted area.

This does not mean every itchy or flaky scalp is cancer. Dandruff, folliculitis, psoriasis and other common conditions can also cause bumps, itching and scaling. The concern is more about a change that does not settle or keeps returning.

Watch for changes in moles too

Melanoma can also develop on the scalp. It may appear as a new dark spot or as a mole that changes over time.

The ABCDE rule is one way of keeping an eye on suspicious moles. A stands for asymmetry, B for an irregular border, C for changes or variations in colour, D for diameter and E for evolving, meaning a mole changes in size, shape or appearance. Melanomas can also itch or bleed.

Verywell Health also points to the “ugly duckling” sign, where one mole looks noticeably different from the others around it. That kind of unusual spot should be checked by a dermatologist.

Why bald and thinning scalps need attention

Sun exposure is the main cause of skin cancer, and the scalp can receive a lot of UV exposure, particularly when hair is thinning or absent. Healthline notes that bald or thinning scalps are especially vulnerable because there is less hair covering the skin.

Dr Abdulaziz Balwi, a doctor specialising in hair transplantation, told UNILAD that people can pay more attention to hair loss than changes in the skin.

"Hair loss feels like an immediate cosmetic concern, while skin changes are easier to dismiss because they may not hurt," he told UNILAD.

He also warned that everyday sun exposure matters, not only beach holidays.

"The skin does not distinguish between a beach holiday and an ordinary afternoon in the sun," he said.

How to protect your scalp

Checking the scalp regularly can help people notice something unusual earlier. Healthline recommends using a comb to part the hair and checking difficult areas with a mirror, with monthly self-exams being one approach.

For people with thinning hair or bald patches, Dr Balwi recommends simple protection rather than a complicated routine.

"Self-care does not need to involve a complicated routine," he said. "For a man with thinning hair, it should include applying sunscreen to the exposed scalp, wearing a hat that provides proper coverage and checking the scalp, ears and neck regularly."

If a suspicious spot is found, a doctor can examine it and, when necessary, perform a biopsy to determine whether it is cancerous and what type it is.

The important thing is not to assume that a persistent sore, crusty patch or unusual growth is simply dandruff. Most scalp changes will not turn out to be cancer, but a change that does not go away deserves proper medical attention.