Small pinholes on the bottom of the foot

These are usually shallow surface depressions in the thick skin of the sole. They can cluster under the ball of the foot, heel, or other pressure points, and may become clearer after the foot is wet. A strong smell, soft white skin, or mild soreness can accompany them. The holes are not the same as a deep puncture wound. Similar marks can result from friction, a fungal condition, eczema, or debris in skin creases, so a photograph or description cannot replace an examination when the pattern is new or changing.

Rinse gently, pat completely dry, and pay attention to the sole and spaces between the toes. Change damp socks promptly and alternate shoes to give them time to dry. Choose footwear that allows airflow and avoid walking barefoot in shared wet areas. Do not dig into the pinholes or use harsh acids. If sweating continues, ask about [Prescription Antiperspirant](/treatments/medical-dermatology/prescription-antiperspirant/); if a clinician confirms bacterial infection, [Topical Antibiotic Therapy](/treatments/medical-dermatology/topical-antibiotic-therapy/) may be considered.

Seek medical advice if the pinholes multiply, the odour does not settle, or the sole becomes painful. Get prompt care for spreading redness, swelling, pus, fever, a deep opening, or difficulty bearing weight. People with diabetes, poor circulation, or reduced foot sensation should have new breaks in sole skin assessed early.

Ask whether the marks are shallow pits or true wounds, whether sweating is contributing, which treatment is appropriate, and how to keep footwear from bringing the problem back.