Doctor-written skin guide · Johor Bahru
Melasma usually causes broader, often symmetrical facial patches influenced by ultraviolet light, visible light, hormones and heat. Sun spots, or solar lentigines, are more discrete flat lesions related to cumulative sun exposure. Both need examination because treatment response and recurrence differ.
Written by Dr Kenneth Lee
Medical Director, Dr Plus Aesthetic Clinic
MBBCh (Cardiff University) · GDipFP Dermatology (NUS) · LCP-certified medical practitioner
Introduction
The phrase dark spots can describe several conditions. Melasma is often chronic and relapse-prone, while a solar lentigo is a localised benign sun-related mark. Post-inflammatory pigmentation, freckles, medication effects and suspicious lesions can resemble either. Treating every brown mark with the same laser or peel can worsen pigment or delay diagnosis.
For patients in Johor Bahru, local relevance should come from practical care: Malaysia’s year-round ultraviolet exposure, heat and humidity can affect sunscreen habits, pigment control and recovery planning. Location does not change the biology of a condition, but it can change how a realistic plan is carried out.
Key takeaways
| Key point | What it means |
|---|---|
| Melasma pattern | Broader, often symmetrical patches commonly affect cheeks, forehead or upper lip. |
| Sun-spot pattern | Solar lentigines are usually discrete flat marks on sun-exposed areas. |
| Recurrence | Melasma commonly returns without ongoing trigger control. |
| Diagnosis | History and examination come before energy treatment. |
| Sun protection | Ultraviolet and visible-light management supports both conditions. |
How melasma and solar lentigines differ
Melasma involves increased pigmentation in a characteristic facial distribution and can contain epidermal, dermal or mixed pigment. Hormonal factors, pregnancy, medicines, genetics, ultraviolet exposure and visible light may contribute. A solar lentigo is a well-defined flat pigmented lesion arising on chronically sun-exposed skin and tends to remain unless treated.
- Bilateral patches across cheeks, forehead or upper lip may suggest melasma.
- One or more sharply defined flat brown spots may fit solar lentigines.
- Pigment following acne, dermatitis or injury is more consistent with PIH.
- Any changing, irregular or bleeding lesion needs assessment rather than automatic pigment treatment.
Evidence note: DermNet describes melasma as a chronic acquired pigment disorder with epidermal, dermal or mixed patterns and solar lentigo as a benign flat lesion on sun-exposed skin. DermNet melasma · DermNet solar lentigo · DermNet pigmentation disorders · DermNet PIH · NICE acne guideline
Why assessment comes before treatment
The doctor reviews distribution, symmetry, onset, pregnancy or hormonal history, medicines, sun and heat exposure, previous irritation and treatment response. Examination may include lighting or dermoscopic assessment where appropriate.
- Define the main concern in the patient’s own words and separate colour, texture, inflammation, volume and laxity rather than treating them as one problem.
- Review when the concern began, how it changes, what has already been tried and whether previous treatment caused irritation, pigment change or prolonged healing.
- Examine the skin in suitable lighting and consider skin tone, sensitivity, active disease, scar tendency and any features that require a different diagnosis or referral.
- Agree on the outcome that would be meaningful, the downtime that is manageable and the risks or trade-offs the patient does not want to accept.
Assessment is also where the doctor checks current medicines, previous procedures, pregnancy or breastfeeding where relevant, infection risk, wound-healing history, pigment tendency and the amount of recovery time a patient can realistically manage. These factors may change the treatment choice, intensity, sequence or whether treatment should be postponed.
Why treatment strategies differ
Pigment depth, trigger pattern and recurrence risk affect whether care begins with topical treatment, sun protection, a procedure or monitoring.
Melasma foundation
Daily broad-spectrum protection, trigger control and selected topical therapy often form the base. Procedures are added cautiously because inflammation can provoke rebound.
Solar-lentigo treatment
A stable benign spot may be considered for a targeted pigment procedure after diagnosis, while ongoing sun protection helps limit new lesions.
Post-inflammatory pigmentation
Control the original inflammation and avoid further irritation. Time and topical care may be more important than immediate laser.
Uncertain lesions
If the diagnosis is not clear, cosmetic treatment should wait. Referral or biopsy may be required for suspicious features.
Benefits, limitations and realistic expectations
Melasma is usually managed rather than permanently cured. Even good improvement can relapse with sun, heat, hormonal influences or treatment irritation. A solar lentigo may respond to targeted treatment, but new sun-related spots can develop. Neither outcome removes the need for long-term protection.
Potential benefits
- A lower chance of using the wrong device for a relapse-prone condition.
- More realistic counselling about maintenance and recurrence.
- Targeted treatment for discrete lesions after diagnostic assessment.
- Early recognition of lesions that should not be treated cosmetically.
Important limitations
- Visual overlap can make self-diagnosis unreliable.
- Melasma can contain pigment at different depths and respond unevenly.
- Sun protection reduces triggers but cannot remove every cause.
- Procedures can cause PIH, hypopigmentation or rebound pigment.
No article, photograph or device name can predict an individual result. Meaningful improvement may require a sequence of care, and the safest stopping point may arrive before every visible feature has disappeared.
Safety and who may not be suitable
Pigment treatment should be conservative in skin prone to PIH. High-energy treatment, deep peels and unregulated bleaching mixtures can cause burns, ochronosis, patchy lightening or worsening pigment.
- Treatment may need to wait when there is active infection, significant irritation, a recent procedure or uncontrolled inflammation in the intended area.
- Pregnancy, breastfeeding, medicines, allergies, bleeding tendency and previous abnormal scarring should be discussed before a procedure or prescription is selected.
- Darker skin tones can be more prone to post-inflammatory pigment change after irritation, so preparation, treatment intensity and sun protection matter.
- A changing, bleeding or diagnostically uncertain lesion should be medically evaluated instead of being treated as an ordinary cosmetic concern.
A new, changing, irregular, multicoloured, itching or bleeding pigmented lesion should be medically examined. Seek review after treatment for blistering, severe pain, infection or sharply worsening pigmentation.
Preparation, recovery and aftercare
Use the recommended sun protection consistently, including hats and shade. Avoid picking or exfoliating treated skin, and reintroduce active products only as directed.
- Follow the prescribed cleansing, moisturising and sun-protection instructions, keeping the routine simpler while the skin is sensitive.
- Avoid picking, scrubbing, unapproved acids or retinoids and unnecessary heat exposure until the treating clinician advises that they can be resumed.
- Use photographs taken in similar lighting to track gradual change rather than judging the skin repeatedly during temporary redness or swelling.
- Attend the planned review so response, side effects and the need for another stage can be assessed after the skin has had time to settle.
Follow the instructions given for your own treatment rather than copying another patient’s routine. Contact the treating clinic if recovery is more painful, prolonged or unusual than expected.
How this fits into a wider treatment plan
This diagnostic comparison supports the melasma pillar while linking to the broader pigmentation page. The melasma page remains the destination for chronic symmetrical facial pigment care in Johor Bahru.
This article supports the Melasma Treatment Johor Bahru page. That service page remains the main destination for patients evaluating care in Johor Bahru, while this guide answers the narrower question described above.
Questions to take to your consultation
A good consultation should make the decision clearer even when the answer is not immediate treatment. Ask the doctor to identify the clinical target, explain the strength of evidence and show how your skin tone, medical history and previous response affect the recommendation. The discussion should cover what improvement would be meaningful, what is unlikely to change, what alternatives exist and what would make the doctor postpone or stop treatment.
- What diagnosis or anatomical feature is the treatment intended to address?
- What evidence supports this option for my specific concern and skin type?
- What are the most relevant side effects, complications and warning symptoms?
- How much social and medical downtime should I plan for at the proposed settings?
- How will progress be measured, and when is it reasonable to decide whether another stage is worthwhile?
- What lower-intervention alternative or referral option should I understand before consenting?
Write down the answers or ask for written aftercare. Decisions are safer when the patient understands both the potential benefit and the reasons a treatment may not be recommended.
Questions patients ask
Is melasma the same as sun damage?
No. Sun exposure is a major trigger, but melasma has a characteristic pattern and other hormonal and genetic contributors.
Are sun spots dangerous?
Solar lentigines are benign, but a changing or uncertain pigmented lesion should be examined.
Can melasma be cured permanently?
Permanent cure cannot be guaranteed; recurrence and maintenance are common parts of care.
Can laser worsen melasma?
Yes, inflammation or excessive energy can provoke rebound pigment in some patients.
Does pregnancy cause melasma?
Hormonal changes during pregnancy can contribute, though not every facial patch is melasma.
Is visible light relevant?
Visible light can contribute to melasma, particularly in darker skin tones, so protection may include tinted formulations.
Will sunscreen remove existing pigment?
It supports control and prevents darkening but is not a stand-alone removal treatment.
Can I treat one dark spot at home?
Avoid strong acids or bleaching products before diagnosis, especially if the lesion is new or changing.
How is PIH different?
PIH follows inflammation or injury and sits where the original skin problem occurred.
Why does treatment take time?
Pigment depth, turnover, trigger control and tolerance determine the rate of improvement.
Conclusion
Melasma is a chronic patterned pigmentation disorder, while solar lentigines are discrete sun-related lesions. Diagnosis changes the balance between maintenance, topical care and targeted procedures. The safest plan begins by confirming the type of pigment and acknowledging recurrence risk.
Start with a doctor-led assessment
Bring your concern, treatment history, current skincare and questions. Dr Kenneth will explain the suitable options, limitations and next steps without promising a result.
Arrange a consultationReferences
- DermNet: Melasma
- DermNet: Solar lentigo
- DermNet: Pigmentation disorders
- DermNet: Postinflammatory hyperpigmentation
- NICE guideline NG198: Acne vulgaris management
Medical information notice: This article provides general education and does not diagnose a condition or replace an in-person medical assessment. Treatment suitability, benefits, risks, alternatives and recovery vary between individuals.