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A skin biopsy is often the quickest way to answer a question that an examination alone cannot settle. It may be used to identify an unusual growth, confirm an inflammatory rash, or determine whether a spot is cancerous or precancerous.
The biopsy technique is chosen to fit the problem, and the visit should end with clear wound-care instructions plus a plan for reviewing the pathology result.
When is a skin biopsy recommended?
A biopsy may be recommended when a lesion is changing, bleeding, persistent, atypical, or otherwise concerning, or when a rash or other skin condition has not been fully explained by the examination. The type of biopsy depends on the location, depth, size, and suspected diagnosis.
Types of skin biopsy
- Shave biopsy: Removes a superficial portion of a raised or surface lesion.
- Punch biopsy: Removes a small cylindrical sample that includes deeper layers of skin and may require one or more stitches.
- Saucerization biopsy: Removes a deeper, disk-shaped sample when additional depth is needed.
- Excisional biopsy: Removes an entire lesion when that approach is appropriate.
What to expect
The area is cleaned and numbed with local anesthetic. The biopsy itself usually takes only a few minutes. Depending on the technique, the site may be treated with a hemostatic agent, allowed to heal naturally, or closed with stitches. The specimen is then sent to a pathology laboratory for microscopic examination.
Biopsy results and next steps
Your next step depends on the pathology result. Some biopsies confirm a benign diagnosis and require no additional treatment. Other results may lead to medication, additional testing, skin cancer treatment, surgical excision, or Mohs surgery when appropriate.
Aftercare
You will receive wound-care instructions for the biopsy site. Mild soreness, crusting, or a small amount of bleeding can occur. Any biopsy can leave a scar or pigment change. Contact the office for persistent bleeding, increasing pain, pus, spreading redness, fever, or another concerning change.
After a shave biopsy: Review our Procedural Wound Care — Shave Biopsy instructions for daily cleansing, petroleum jelly, dressing changes, bleeding control, activity precautions, and when to call the office.
Do not stop aspirin, anticoagulants, antiplatelet medications, or other prescribed medicines unless the clinician who prescribed them tells you to do so.
Schedule an evaluation
If you have a changing growth, suspicious spot, persistent rash, or another skin concern that may require biopsy, Book Appointment to arrange an evaluation in Garden City, Syosset, or Bellerose.