Podiatry

Nail Biopsy

Sampling of nail plate, bed, or matrix tissue to diagnose nail disorders.

What is a Nail Biopsy?

A nail biopsy removes a small sample of nail tissue to diagnose causes of pigment changes, thickening, tumors, or persistent nail problems. Techniques include:

Punch biopsy of the nail bed or plate.
Longitudinal excision involving the matrix for pigmented streaks.
Shave/curettage of superficial lesions.
Performed with digital block anesthesia; the specimen is sent to pathology.

What to expect after a Nail Biopsy?

Numbness for several hours from the local anesthetic
Protective dressing or splint; keep clean and dry for 24–48 hours
Throbbing pain the first night; elevation and NSAIDs help
Light activity the next day; avoid tight shoes and trauma
Stitches (if used) removed in 10–14 days; nail regrowth may take months
Call if increasing redness, drainage, or fever occurs

Why is it performed?

To rule out nail melanoma or other tumors
To diagnose infections (fungal) or inflammatory conditions (psoriasis, lichen planus)
To guide targeted treatment when clinical exam is inconclusive

Risks and Considerations

Infection or bleeding under the nail (hematoma)
Temporary or permanent nail deformity depending on biopsy site
Nerve sensitivity at the fingertip or toe tip
Scarring

Early detection is important for managing the condition and preventing further complications.

Schedule a consultation today.

FAQs

Will the nail look different afterward?

Temporary changes are common; matrix biopsies may cause permanent ridging.

Is the procedure painful?

The digital block numbs the area; mild soreness afterward.

How soon are results ready?

Typically 7–10 days.

Can I work the next day?

Yes—limit pressure and keep the dressing on.

Do I need antibiotics?

Not usually; only if signs of infection appear.

Podiatry

Doral Health & Wellness Foot & Ankle Department

Doral Health & Wellness Podiatry provides comprehensive foot and ankle care. Our experienced podiatrists offer a range of services, including diagnosis and treatment of foot and ankle conditions, sports injuries, diabetic foot care, and custom orthotics. We are dedicated to helping you achieve optimal foot health and mobility.