A skin biopsy is used to evaluate and/or remove an area of abnormal skin. It is most often done for the following reasons:
To diagnose bacterial, viral, or fungal infection,
cancer, inflammatory skin disorders (such as
psoriasis), or benign skin growths
To verify the presence of normal skin at the edge of an area where a tumor was removed
To monitor the effectiveness of a treatment
Complications are rare, but no procedure is completely free of risk. If you are planning to have a skin biopsy, your doctor will review a list of possible complications, which may include:
Poor wound healing
Some factors that may increase the risk of complications include:
What to Expect
Prior to Procedure
No special preparation is needed for this procedure.
Local anesthesia may be used. It will numb the area being biopsied.
Description of the Procedure
Shave biopsy—A thin slice from the top of the skin will be removed.
Punch biopsy—A hollow punch tool will be gently pushed into the skin. As it is pushed down, the tool will be rotated to cut the skin. The circular punch of skin will then be cut free. This type of biopsy will provide a sample containing cells from all of the layers of the skin. Depending on the size of the punch, stitches will be placed to close the hole.
Excision biopsy—A scalpel will be used to remove the entire area of abnormal skin. This procedure cuts a larger and deeper hole in the skin. Stitches will be placed to close the hole left in the skin.
After the procedure, clean steri-strips will often be placed to help keep the wound closed. A clean dressing will be placed over the area.
How Long Will It Take?
Will It Hurt?
There may be some temporary pain and discomfort after the procedure.
Keep the biopsy area clean and dry. Keep it covered with a sterile bandage for 1-2 days. If steri-strips were applied, they will fall off on their own in about a week.
Be sure to check with your doctor about when you may shower after the procedure. Pat the wound dry after you have washed it with a mild soap. Do not submerge the wound in water until it is well-healed.
Take pain medicine if necessary.
Stitches will be left in the skin for 3-14 days, depending on where they are located. Ask your doctor when you can expect the results of the biopsy.
Be sure to follow your doctor's
Call Your Doctor
After arriving home, contact your doctor if any of the following occurs:
Signs of infection, including fever and chills
Redness, swelling, increasing pain, excessive bleeding, or discharge from the incision site
Pain that you cannot control with the medicines you have been given
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a