Dark Spots Appearing on the Body: What to Know

A flat brown or grey mark may be post-inflammatory hyperpigmentation after a rash, bite, cut, burn, or healed spot. Sun-exposed areas can develop sun spots, while broader, fairly even patches may fit melasma. Tinea versicolor can create lighter or darker patches with fine scaling, often on the trunk. Colour alone cannot identify the cause; note whether the area is flat, scaly, itchy, tender, or spreading.

Photograph the area in consistent light and record when it appeared, recent skin products, injuries, rashes, medicines, and sun exposure. Use gentle cleansing, avoid picking or scrubbing, and protect exposed skin from sunlight with clothing and sunscreen. A clinician can examine the pattern and choose treatment; options may include a prescribed topical approach or supervised procedures such as a chemical peel, skin brightening treatment, or picosecond laser treatment.

Arrange a prompt skin assessment if a spot changes quickly, develops several colours, has an irregular edge, bleeds, crusts, becomes persistently painful, or forms a sore that does not heal. Seek earlier advice for widespread new patches, marked scaling, or a rash with fever or facial swelling. A stable mark can still be assessed if it worries you or does not improve after the trigger has settled.

Ask whether the pattern suggests post-inflammatory hyperpigmentation, melasma, sun spots, or tinea versicolor; whether a close examination or testing is needed; which products could irritate your skin; and how to protect the area while its cause is being clarified.