Hyperpigmentation simply means areas of skin that are darker than the surrounding skin. It is very common, usually harmless, and has several different causes — including sun exposure, marks left after acne or a rash, and a specific pattern called melasma. This guide explains, in plain language, what these are, how the types differ, general ways people care for their skin, and when it is sensible to have your skin looked at in person. It also explains, importantly, why a mole or spot that is changing or bleeding is different and needs prompt in-person attention.
What Is Hyperpigmentation?
Hyperpigmentation is a general term for darker patches or spots on the skin. It happens when the skin makes more pigment (melanin) in some areas. It is usually a cosmetic concern rather than a dangerous one, but the type and cause can vary, which is why understanding the pattern helps.
Common Types and How They Differ
Post-inflammatory hyperpigmentation (dark marks)
Darker areas left behind after acne, an injury or a rash. They often fade slowly over time.
Melasma
A pattern of larger patches, often symmetrical on the cheeks, forehead or upper lip. Melasma is commonly linked with sun exposure and hormonal factors (for example pregnancy or some medicines), and it can be persistent and come back, especially with sun exposure.
Sun-related dark spots and uneven tone
Spots and patchy darkening that build up with sun exposure over time.
These can look similar, so your history helps a doctor consider which is most likely.
| Type | Appearance | Common cause |
|---|---|---|
| Post-inflammatory hyperpigmentation | Dark marks at site of old acne or rash | Skin inflammation (acne, injury, rash) |
| Melasma | Larger symmetrical patches — cheeks, forehead, upper lip | Sun exposure + hormonal factors |
| Sun-related spots | Scattered spots and uneven tone | Cumulative sun exposure over time |
Common Causes and Contributing Factors
Pigmentation can be influenced by:
- Sun exposure (a major factor for most types)
- Previous skin inflammation, such as acne or a rash
- Hormonal changes (for example during pregnancy or with some medicines) — relevant to melasma
- Friction or irritation of the skin
- Individual skin type
Understanding what may be contributing is part of planning realistic, everyday care.
General Care (Everyday, Non-Prescriptive)
Many people find these general measures helpful for pigmentation:
- Daily sun protection (broad-spectrum sunscreen, shade, hats) — this is the single most consistently recommended step, especially for melasma
- A gentle, consistent skincare routine and avoiding harsh scrubbing
- Being patient — pigmentation usually fades slowly, and results vary from person to person
Important to know
This is general information, not a treatment plan. There is no guaranteed way to remove or "lighten" pigmentation, and melasma in particular can return.
When Medical Assessment Is Appropriate
It is reasonable to have your skin assessed if:
- You are unsure what type of pigmentation you have
- It is spreading, changing, or bothering you
- Over-the-counter measures have not helped and you would like tailored advice
A dermatologist can talk through the likely type and realistic options. Because photographs can be affected by lighting and camera quality, an online consultation may not confirm the exact type in every case, and an in-person examination is sometimes needed.
Important: When a Mole or Changing Spot Needs Prompt In-Person Assessment
This is different from ordinary cosmetic pigmentation. A mole or spot should be seen in person promptly — not treated as routine cosmetic pigmentation — if it is:
A mole or spot that is changing in size, shape or colour; irregular in outline or colour; itchy, painful, crusting or bleeding; or new and growing (especially in adulthood) needs a direct in-person examination — not a routine online cosmetic consultation. Please arrange an in-person assessment promptly.
Talking to a Dermatologist Online
If you would like tailored advice on everyday pigmentation or melasma, you can consult a dermatologist online about skin pigmentation through a scheduled video consultation. It is useful for discussing your history, reviewing clear photographs and general sun-protection and skin-care advice. When booking, you can attach clear, well-lit photographs using the attach-a-file option. Remember that photographs have limits, results cannot be promised, and a dermatologist may recommend an in-person examination.
Online vs in-person
Online suits history-taking, photo review and general advice. In-person is needed for a close look at the skin and for any changing or suspicious lesion.
Frequently Asked Questions
What is the difference between hyperpigmentation and melasma?
Hyperpigmentation is a general term for darker areas of skin. Melasma is a specific pattern of larger, often symmetrical facial patches linked with sun exposure and hormonal factors, which can be persistent and return.
What causes dark marks after acne?
Dark marks after acne are a type of post-inflammatory hyperpigmentation — the skin makes extra pigment where it was inflamed. They often fade slowly over time.
Can pigmentation or melasma be permanently removed?
No outcome can be promised. Pigmentation and melasma can be difficult to treat, results vary, and melasma in particular can come back, especially with sun exposure.
Does sunscreen help with pigmentation?
Daily broad-spectrum sun protection is one of the most consistently recommended steps, especially for melasma, because sun exposure is a major contributing factor.
Can a dermatologist assess pigmentation online?
Many pigmentation concerns can be discussed during a scheduled video consultation, especially with clear photographs. Because lighting and camera quality affect photos, the exact type may not be confirmed online, and an in-person examination is sometimes needed.
What should I share during the consultation?
How long you have had it, where it is, whether it is changing, any triggers such as sun or pregnancy, and what you have already tried. Clear, well-lit photographs help.
Is a treatment or prescription guaranteed?
No. A prescription is not guaranteed and depends on the dermatologist's assessment, and treatment outcomes cannot be guaranteed.
When should a mole or spot be checked in person?
A mole or spot that is changing in size, shape or colour, or that is irregular, itchy, painful, crusting or bleeding, should be assessed in person promptly rather than treated as routine cosmetic pigmentation.
Is melasma linked to hormones?
Melasma is commonly linked with hormonal factors such as pregnancy or some medicines, along with sun exposure. It can be persistent and may return.
Medical disclaimer
This article is for general information and patient education only. It is not a substitute for professional medical advice, diagnosis or treatment, and does not diagnose any condition or recommend specific medicines. Always consult a qualified doctor about your symptoms, and seek immediate in-person care in an emergency.
