About this service
A punch biopsy is a diagnostic procedure used when a clinician needs a full-thickness sample of a skin lesion or rash. The reason for biopsy, sample site, scar and result pathway are explained before consent.
Minor Surgery
Punch Biopsy
Removal of a small cylindrical skin sample for laboratory examination.
What the pathway covers
- Selection and marking of the biopsy site
- Local anaesthetic and collection of the tissue sample
- Wound closure where needed, aftercare and laboratory submission
Before your appointment
- Tell the clinician about anticoagulants, allergies and healing problems
- Plan around wound care and possible suture removal
- Ask when results are expected and who will discuss them
Why a punch biopsy may be recommended
A punch biopsy removes a small, circular sample containing the surface and deeper layers of skin. It can help investigate a persistent rash, an inflammatory skin condition or a lesion that cannot be identified confidently by examination alone. The sample is normally sent to a pathology laboratory, where it is examined under a microscope.
During the procedure
The area is cleaned and numbed with local anaesthetic. A sterile punch instrument is used to take the sample; depending on its size and location, one or more stitches may be needed. You may notice pressure or movement, but the anaesthetic is intended to prevent sharp pain.
Healing, results and possible risks
A dressing is applied and you will receive instructions about keeping the wound clean and arranging stitch removal if required. A small scar is expected. Recognised risks include bleeding, bruising, infection, delayed healing and an unpredictable scar. Laboratory times vary, so the clinic should explain how and when results will be communicated.
- Tell the clinic about blood-thinning medicines and allergies before the appointment
- Follow the wound-care instructions and avoid disturbing the dressing
- Seek advice for increasing redness, heat, swelling, discharge or persistent bleeding
Important to know
The procedure provides a tissue sample; the final interpretation comes from the pathology report and clinical context.
Next step
Ask about Punch Biopsy.
Tell the team you are enquiring about Punch Biopsy so they can direct you to the correct appointment.