What should you know about body hyperpigmentation treatment for black skin?

Hyperpigmentation means an area has more visible pigment than the surrounding skin. On richly pigmented skin, inflammation from acne, eczema, shaving, friction, burns or an irritating product can leave dark patches after the original problem settles. Sun and visible light may deepen contrast, including on areas that are exposed or repeatedly inflamed. The pattern, texture, timing and underlying cause matter more than the colour alone.

A clinician should examine changing, thickened, scaly or uneven patches before choosing a cosmetic procedure. Treating an active rash or repeated friction first can reduce the chance of further darkening. A patch that changes quickly, bleeds or develops a sore should be assessed rather than treated as a cosmetic concern.

Start with gentle cleansing, regular moisturising, protection from light on exposed areas and removal of the trigger where possible. A prescribed topical medicine such as hydroquinone treatment may be considered for selected patches and should be used exactly as directed. Chemical peel, IPL photofacial or picosecond laser treatment can help some pigment patterns, but settings and test areas need careful selection for darker skin tones because irritation may cause new pigment changes. Skin brightening treatment should be individualised, with realistic expectations and time between procedures for the skin to recover. Avoid unlabelled bleaching products and harsh scrubs.

Book a dermatology assessment when pigmentation is widespread, itchy, painful, rapidly changing, associated with a rash, or returning despite removing a suspected trigger. Seek prompt care for a bleeding, ulcerated or persistently crusted patch. After a peel or energy-based treatment, contact the treating clinician for increasing pain, blistering, marked swelling or a change that is spreading beyond the treated area.

What is causing the darkening, and is the underlying inflammation controlled? Which treatment is safest for my skin tone and body area? Should a small test area be treated first? How should I protect the area from light and friction? What reaction after treatment would need an urgent review?