Dark Spot on the Foot: What to Know

Shoes, sandals, sports, and minor knocks can irritate foot skin and leave post-inflammatory hyperpigmentation after a blister, cut, rash, or bruise settles. A wart, fungal condition, mole, or sun-related change can also look dark. Skin on the foot may be hidden from view, so compare the mark with older photographs rather than assuming the cause. [Dark Patches On Skin](/symptoms/dark-patches-on-skin/) gives broader symptom context, while [Tinea Versicolor](/conditions/tinea-versicolor/) is one condition a clinician may consider when pigment changes occur with fine scale.

Inspect the mark in good light and take a dated photograph. Check whether footwear rubs it, keep the skin clean and moisturised, and do not cut, file, freeze, or bleach the area yourself. Wear comfortable shoes and protect exposed feet from sunlight. If there was a blister or wound, let the surface heal without peeling it. A clinician can determine whether treatment is needed; cosmetic pigment treatments should wait until an active infection or suspicious lesion has been excluded.

Arrange a prompt examination if the spot grows, develops an uneven edge or multiple colours, becomes raised, repeatedly crusts, bleeds, hurts, or sits beside a wound that will not heal. People with diabetes, poor circulation, reduced sensation, or immune suppression should seek advice promptly for a new foot lesion. Urgent care is appropriate for spreading redness, warmth, pus, fever, or severe pain.

Ask whether friction, pigment after inflammation, fungus, or another lesion best fits the appearance. Ask whether a skin sample is needed, how to protect the area from footwear, and which signs should trigger an earlier review.