Healing After Mohs Surgery

Why Your Wound Was Closed the Way It Was

The wound was closed one of three ways, chosen mainly by its size and location rather than by preference. A small defect is often left open to heal on its own, called healing by secondary intention. Most are stitched closed directly. Larger or trickier defects — on the nose, ear, eyelid, or scalp — are repaired with a skin graft or a local flap that moves nearby tissue over the gap.

Mohs micrographic surgery removes skin cancer one thin layer at a time, checking the full edge of each layer under a microscope before taking more, which is why the final defect is often smaller than a standard excision but can be an unusual shape. A multi-society panel publishes Mohs appropriate use criteria that rate which tumor types, sizes, and locations make Mohs the right call over a standard excision 1Ref 1Ad Hoc Task Force (Connolly SM, Baker DR, Coldiron BM, et al.) (2012).AAD/ACMS/ASDSA/ASMS 2012 appropriate use criteria for Mohs micrographic surgery.A multi-society panel publishes appropriate use criteria rating which tumor types, sizes, and anatomic locations make Mohs micrographic surgery the appropriate choice over a standard excision.. Guidelines for basal cell and squamous cell carcinoma both name Mohs as the preferred approach for tumors on the face, ears, scalp, or genitals, and for more aggressive subtypes — one reason a facial reconstruction so often follows 2Ref 2Kim JYS, Kozlow JH, Mittal B, et al. (2018).Guidelines of care for the management of basal cell carcinoma.AAD guideline naming Mohs micrographic surgery as the preferred approach for high-risk or facial basal cell carcinoma, which is one reason a reconstruction with a graft or flap often follows Mohs.3Ref 3Kim JYS, Kozlow JH, Mittal B, et al. (2018).Guidelines of care for the management of cutaneous squamous cell carcinoma.AAD guideline naming Mohs micrographic surgery for high-risk cutaneous squamous cell carcinoma, supporting why Mohs is chosen for certain tumors over standard excision.. The reconstruction plan is usually decided the same day, right after the final clear margin comes back.

The First 48 Hours

The first two days are mostly about pressure and stillness. A bulky dressing usually stays on, untouched, for 24 to 48 hours to control oozing and let the wound edges set. Some oozing, swelling, and bruising is normal in this window and typically peaks around day two or three, especially under the eyes if the surgery was on the forehead or scalp, before it starts to fade.

A bruise that seems to travel — appearing under an eye two days after work higher on the forehead — is gravity moving blood through soft tissue, not a sign anything went wrong. Keeping the head elevated on an extra pillow overnight and avoiding bending forward at the waist both limit how much swelling pools in the face. Ice wrapped in a cloth, used for short stretches rather than held directly on the wound, can take the edge off swelling in this same window.

Cleaning the Wound and Changing the Dressing

After the first dressing comes off, the routine is usually simple: gently clean the area with plain soap and water or saline, pat it dry rather than rub, apply a thin layer of plain ointment, and cover it with a fresh non-stick bandage. Most surgeons ask for this once or twice a day until the surface has closed over, which is typically one to two weeks depending on the repair.

Soaking the wound — baths, pools, hot tubs — is generally avoided until it's fully closed, though a brief shower is usually fine once the original pressure dressing is off. A little pink-tinged fluid on the bandage is expected; it's the difference between light staining and a dressing that's soaked through with fresh blood that matters, and the latter is worth a call.

Activity, Sun, and Getting Back to Normal

Most people avoid heavy lifting, vigorous exercise, and any activity that stretches or strains the wound for one to two weeks, longer for repairs on the trunk or a limb that flexes with movement. Bending, straining, or a sudden spike in blood pressure can pop a stitch or restart oozing that had already settled, so the restriction is about protecting the closure, not general fatigue.

Sun exposure over a healing or newly matured scar is worth minimizing with clothing or a wide-brimmed hat, since fresh scar tissue can darken or become more visible with UV exposure while it's still remodeling. It's a useful contrast: wound care after biopsy elsewhere on the body is often a days-long affair with a small bandage, while a Mohs repair is a longer, staged process precisely because more tissue was involved.

How the Scar Changes Over the Next Year

A fresh Mohs scar looks its most alarming in the first two to four weeks — pink, slightly raised, sometimes shiny or puckered — and that is not close to its final appearance. Most surgical scars continue to soften, flatten, and fade in color for six to twelve months after the wound closes. Surgical wound healing follows a fairly predictable course regardless of whether the closure was direct stitches, a graft, or a flap: an inflammatory phase in the first days, a rebuilding phase over several weeks, and a slow remodeling phase that runs for months.

Silicone sheets or scar massage are sometimes suggested once the wound is fully closed, though how much difference either makes varies person to person. A scar on the face, where Mohs repairs are most common, tends to blend in better over time than people expect looking at it in week two — the redness in particular fades gradually rather than all at once.

When a Second Procedure or Referral Follows

Not every Mohs repair is finished in one visit. Larger flaps and grafts are sometimes done by a plastic surgeon as a separate, scheduled procedure rather than immediately after the last Mohs stage, especially for complex facial reconstructions. A section of a graft that doesn't fully take, appearing dusky or crusted rather than pink, sometimes needs a minor touch-up rather than starting over.

Scar revision — a later, smaller procedure to improve how a scar looks or moves — is occasionally offered months after the original repair has fully healed, once it's clear what the final result looks like. This is a planned option, not a sign the first repair failed; surgeons generally wait the better part of a year before judging whether a scar needs further work.

Signs the Wound Needs Attention

Pain that gets worse on day three or four instead of easing, rather than gradually improving day over day, is one of the more reliable early signs something needs a look. Spreading redness or warmth that extends outward from the wound edges, a fever, or pus and a foul smell from the dressing are signs of a possible wound infection rather than the expected healing reaction.

• Bleeding that soaks through the dressing and doesn't stop with 10 to 15 minutes of steady, direct pressure
• The wound edges separating or gaping open
• A graft or flap that turns dusky, cold, or numb instead of staying pink
• Increasing pain, swelling, or redness after the third or fourth day, instead of gradual improvement

Any of these is worth a same-day call to the surgeon's office rather than waiting for the next scheduled follow-up.