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Graft or Flap? The Mohs Reconstruction Question Plastic Surgery Offices Answer After Hours

Published August 8, 2026 · PrepQ LLC · physician-written patient education

A dermatologist calls at the end of the day with a Mohs result: the skin cancer is out, the margins are clear, and the defect on the patient's nose needs a plastic surgeon to close it. The patient hears two words on that call — “graft” and “flap” — nods, hangs up, and then sits with them for the rest of the evening. By 8pm they have read four contradictory pages online and want to ask the plastic surgery office one narrow question that the consult moved past too quickly: what is actually the difference, and which one am I getting?

“What's the difference between a skin graft and a flap repair?” The physician-approved answer PrepQ delivers is plain: “A skin graft takes a thin layer of skin from another part of the body and places it over the wound, where it grows a new blood supply. A flap moves nearby skin and tissue, along with its own blood supply, to cover the area. Each works better in different spots and situations. Your plastic surgeon can explain which one fits the size and location of your repair.” That answer does two things at once. It gives the patient the concept — borrowed skin that has to take, versus neighboring tissue that arrives with its own circulation — and it puts the specific choice back where it belongs, with the surgeon who has seen the defect.

Reconstructive plastic surgery generates this category of question constantly, because the vocabulary is unfamiliar and the stakes feel enormous. Burn and complex wound patients ask what reconstruction will involve and hear an honest answer: it focuses on helping the area heal, restoring function, and improving appearance, and depending on the wound it can mean grafts, flaps, or several staged procedures over time. Scar revision patients, sometimes a year out, want to know whether now is the moment — and learn that scars fade and soften on their own for many months, so acting too early may not give the best result. Breast reconstruction patients want the risks laid out before they commit. None of these questions arrive during clinic hours. They arrive in the car, at dinner, at midnight.

Here is the machinery behind the answers, stated plainly. Every answer in PrepQ is written by a physician, and then reviewed and approved by the subscribing practice's own doctors before a single patient sees it — a practice can edit any answer to match its own staging protocols, graft-donor-site instructions, and follow-up intervals. Patients reach those answers by text message or voice call, 24/7/365, on a number that belongs to the practice. Urgent symptoms are not answered by the AI at all: they escalate to the practice's office line or to 911. The service is HIPAA-compliant, and a BAA is available.

For a reconstructive practice, the value of answering the graft-versus-flap question at 8pm is not that it saves a phone call, though it does. It is that the patient arrives at the pre-op visit already holding the vocabulary. Consent conversations get shorter and better. Patients who understand that a graft has to take, and that a donor site is its own small wound with its own care instructions, follow those instructions more reliably and are less likely to panic at a normal-looking donor site on day three. Patients who understand that reconstruction may be staged do not treat stage one as a failed result. And front-desk staff stop re-explaining the same anatomy lesson, in the same words, five times a week.

The staffing math is the part practices feel first. A reconstructive surgeon's phone traffic clusters around a handful of recurring questions with stable, physician-approved answers — exactly the traffic that does not require clinical judgment in the moment, and exactly the traffic that keeps a nurse on the phone at 6:30pm. Moving it to a channel patients already use, while routing anything urgent to a human, is a narrow change with an outsized effect on how the last hour of the day feels.

Common questions, answered

A sample of PrepQ's physician-reviewed plastic surgery answers. Subscribing practices review and approve every answer, and can customize it to their protocols, before any patient sees it.

What's the difference between a skin graft and a flap repair?
A skin graft takes a thin layer of skin from another part of the body and places it over the wound, where it grows a new blood supply. A flap moves nearby skin and tissue, along with its own blood supply, to cover the area. Each works better in different spots and situations. Your plastic surgeon can explain which one fits the size and location of your repair.
What does reconstruction for a burn or complex wound involve?
Reconstruction for a burn or complex wound focuses on helping the area heal, restoring function, and improving appearance. Depending on the wound, this can involve skin grafts, flaps that move nearby tissue, or several staged procedures over time. Each plan is highly individual and shaped to your needs. Your plastic surgeon and care team can explain the approach that fits your situation and what the steps may look like.
When is the right time to consider scar revision?
Timing for scar revision often depends on letting the scar fully mature first, which can take many months to a year, since scars naturally fade and soften during that time. Acting too early may not give the best result. The right moment varies for each person and each scar. Your plastic surgeon can examine your scar and help you decide when revision might be worthwhile for you.
What are the risks of breast reconstruction?
Like any surgery, breast reconstruction carries some risks, but serious problems are uncommon and most people recover well. Because the specific risks depend on your health, your type of reconstruction, and your treatment, it's best to have your plastic surgeon review the details with you. They can answer your questions fully and help you feel prepared before moving ahead.

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