Facial pigmentation: possible causes, sun care and treatment planning

Pigmentation is a description, not one diagnosis

Uneven skin colour or dark patches may follow inflammation, sun exposure, hormonal changes or other skin conditions. Melasma is one possible cause, but not every patch is melasma, and different conditions can look similar in photographs.

A clinician considers when the change began, where it appears, relevant medicines and skin history before suggesting a plan. Rapidly changing, bleeding or otherwise unusual spots should be assessed promptly rather than treated as a cosmetic concern at home.

Why sun protection matters

Sun exposure can worsen some forms of pigmentation and may contribute to recurrence. Follow the directions on a suitable broad-spectrum sunscreen, reapply as directed, and use shade, a hat or other protective clothing when outdoors.

Sun care supports a treatment plan but does not identify the cause or replace an assessment. Ask a clinician or pharmacist if you are unsure which products suit your skin or if a product causes irritation.

Avoid quick-fix whitening products

Unlabelled lightening creams and products that contain undeclared ingredients can harm skin. Avoid using strong bleaching agents, steroid creams or prescription medicines without medical advice, especially on the face.

Peels, lasers and prescription treatments are not interchangeable. The safest option depends on the diagnosis, skin type, previous irritation and other health factors. Some procedures can make discoloration worse if chosen or used inappropriately.

What to discuss with a skin specialist

• When the patches first appeared and whether they are changing.
• Any creams, supplements, medicines or procedures you have tried.
• Your skin-care routine, sun exposure and history of irritation.
• Expected timeframe, possible side effects, alternatives and maintenance.