After a skin biopsy, keep the site clean and covered, change the bandage as instructed, and expect mild tenderness for a few days. A shave biopsy heals like a scrape, while a punch biopsy may have stitches that come out later. The sample goes to a pathology lab, and your provider reviews the results with you and explains any next steps.
After a skin biopsy, the site usually heals within one to three weeks with simple care, and the tissue sample goes to a pathology lab where a specialist examines it under a microscope. Your provider reviews the results with you and explains whether anything more is needed.
Caring for the biopsy site
- Leave the first bandage on for the time your provider recommends, usually about a day
- Gently wash the area once or twice a day with mild soap and water and pat dry
- Apply petroleum jelly or the ointment your provider suggests to keep the wound moist
- Cover it with a clean bandage until it heals
- Avoid soaking in baths, pools, or hot tubs until your provider says it is fine
What normal healing looks like
- Shave biopsy. Heals like a scrape, forming a pink, shallow spot that slowly fills in.
- Punch biopsy. A small round wound that is often closed with one or two stitches. Stitches usually come out in one to two weeks, depending on location.
- Excisional biopsy. A longer, stitched line that needs a little more protection from strain.
Mild tenderness, slight redness at the edges, and a little clear or pink drainage in the first few days are normal.
When to call
Call the office for spreading redness, warmth, swelling, pus, red streaks, fever, or bleeding that does not stop after 15 minutes of steady pressure.
Understanding your results
Pathology results take some time while the lab processes the sample. Your provider reviews them with you and explains what they mean in plain language. Many biopsies show harmless findings. If the result shows a precancerous change or skin cancer, your provider explains the options, which may include watching the area, an office excision when appropriate, or a referral to a dermatologist or skin cancer surgeon.
Stitch removal and scarring
If stitches were placed, a follow up visit is scheduled for suture removal and a healing check. Most biopsy scars fade over months. Protecting the area from the sun as it heals can help.
Our Trinity and Hudson offices offer shave, punch, excisional, and incisional skin biopsies at both our Hudson and Trinity offices. New patients age 18 and older are welcome. Appointment availability is determined by the office.
Frequently asked questions
How long does a skin biopsy take to heal?
Most biopsy sites heal within one to three weeks, depending on the type, size, and location.
Can I shower after a skin biopsy?
Usually yes, after the first day. Gently wash, pat dry, and replace the bandage.
What if my biopsy shows skin cancer?
Your provider explains the type and next steps. Many skin cancers found early are very treatable, and the team coordinates any referral.
This content is provided for general educational information and is not a substitute for personalized medical advice, diagnosis, or treatment. Medical needs and treatment options vary from person to person. If you have questions about your health or whether a service may be appropriate for you, contact Internal Medicine MD to speak with a member of the care team or schedule an appointment with a qualified medical provider. If you are experiencing a medical emergency, call 911 or seek emergency medical care.
