Dark Spots on the Bottom of the Feet: What to Know

Pressure from walking, tight shoes, blisters, burns, or a small injury can cause blood or pigment to collect under thick sole skin. A resolving bruise usually changes as it heals. Peeling, itch, cracking, or several patches may point to a fungal foot problem, while a single irregular brown or black spot can have another cause and should not be identified from appearance alone. Sun spots and melasma are less typical on the soles because this skin is usually covered.

Check the soles in good light and compare both feet. Wear well-fitting shoes, keep feet dry, and do not cut, file, or scrape the mark. Avoid applying acids or pigment products to broken skin. Photograph the area beside a ruler-free reference such as the foot outline so changes are easier to notice. A clinician can inspect the spot, surrounding skin, nails, and any history of injury or new footwear.

Arrange dermatology review for a mark that is new, enlarging, changing colour or border, bleeding, crusting, painful, or not settling after an injury heals. Seek earlier care if you have reduced sensation, poor wound healing, or a sore that is not closing. Rapid swelling, warmth, pus, or fever needs prompt medical attention.

Could pressure, infection, or injury explain this mark? Does it need a closer examination or testing? Which changes should I photograph, and when should I return if it remains?