What is poikiloderma?
Poikiloderma is a descriptive term for skin that shows a combination of colour variation, visible surface vessels and textural changes. It most often appears on the sides of the neck and upper chest. The area may look mottled with a mix of pink, brown and lighter patches. Poikiloderma often appears as neck and chest discolouration that develops slowly in areas exposed to sunlight over many years.
Poikiloderma itself is not considered harmful. Many people notice these changes in areas that have been exposed to sunlight over long periods, particularly the neck and upper chest where sunscreen is often missed.
What causes poikiloderma?
Poikiloderma usually develops gradually and may be linked to several factors.
Cause #1 – Sun exposure
Long term ultraviolet exposure can affect collagen, pigment cells and small blood vessels. These changes contribute to the mix of colours and visible surface vessels.
Cause #2 – Skin ageing
As the skin becomes thinner and more fragile with age, it may develop visible pigment and vascular changes more easily.
Cause #3 – Fragrance or irritants
Perfumes or scented products used on the neck may increase sensitivity, especially when sunlight is involved.
Cause #4 – Genetics
Some people naturally have skin that is more reactive or more prone to pigmentation or redness.
Cause #5 – Hormonal or medical conditionsÂ
Occasionally poikiloderma may be linked with hormonal shifts or other medical conditions. A professional consultation can help rule these out.
Why do I have poikiloderma and others don’t?
Not everyone develops poikiloderma. Differences often relate to skin type and daily habits.
Factor #1 – Skin type and genetics
Fairer or more sensitive skin types are more prone to sun related pigment changes. Family history may also play a role.
Factor #2 – Sun protection habits
The neck and chest are often left unprotected while the face is well covered. This can lead to uneven sun exposure over time.
Factor #3 – Product use
Using perfumes or alcohol based sprays on the neck may irritate the skin, particularly when combined with sunlight.
Factor #4 – Hormonal or health changes
Some people experience increased pigmentation or redness due to hormonal shifts or medical conditions.
Factor #5 – Environmental exposure
Spending more time outdoors or living in sunny climates increases cumulative UV exposure.
Where does poikiloderma appear?
Many people with poikiloderma notice sun related pigmentation on the neck becoming more visible over time, especially if the area has not been consistently protected with sunscreen.
It usually affects:
- The sides of the neck, often sparing the area directly under the chin
- The décolletage or upper chest
- Occasionally, other sun-exposed areas like the cheeks or temples
It often appears symmetrical, with both sides of the neck or chest showing similar changes.
Is poikiloderma common in Australia?
Yes. Australia’s high levels of ultraviolet exposure make poikiloderma relatively common, especially in adults over 40 or those with fair or sensitive skin.
Frequently Asked Questions
Q: Is poikiloderma dangerous?
A: Poikiloderma is usually harmless. It should be assessed to ensure the changes are not caused by another condition. Any sudden changes should be reviewed by a healthcare professional.
Q: Can poikiloderma be reversed?
A: It may not be fully reversed. Some people notice improvement in appearance with daily sun protection, supportive skincare and professional guidance.
Q: Why is it worse on the sides of the neck?
A: The sides of the neck tend to receive the most sun exposure. The area under the chin is shaded and often remains unaffected.
Q: Can poikiloderma affect younger people?
A: Yes. Younger people with frequent sun exposure, sensitive skin or a family history of pigmentation issues may notice early changes.
Q: Is treatment covered by Medicare?
A: Most cosmetic treatments are not covered. If a medical condition is identified, a doctor can advise whether rebates apply.
