Nail Avulsion: What It Is, Why It’s Done and What to Expect

If your toenail has been digging into the skin for months, or your doctor has recommended a nail procedure, you’re probably wondering: what exactly is a nail avulsion, does it hurt, and what’s the recovery like?

Here’s a complete, honest guide to toenail avulsion — from what happens in the procedure room to how long recovery takes.

The most common reason for a nail avulsion is an ingrown toenail. If that is what brought you here, start with our complete guide to ingrown toenail removal in Michigan — procedure, cost, recovery, and when it becomes urgent.

What Is a Nail Avulsion?

A nail avulsion is the separation and removal of part or all of a toenail from its nail bed (the skin beneath the nail). It’s one of the most common minor surgical procedures performed in podiatry offices. You may also see it called toenail removal. When the nail root is also treated so that the nail cannot grow back, the procedure is called a matrixectomy, or permanent toenail removal.

Avulsions are classified by extent:

• Partial nail avulsion (PNA): Only one or both borders of the nail are removed — the portion that’s ingrown or causing problems. The central nail plate remains. This is the most common procedure.
• Total nail avulsion (TNA): The entire nail plate is removed. It is used for badly damaged or infected nails, some severe fungal infections, or as part of a matrixectomy.
• Traumatic avulsion: Accidental loss of part or all of a toenail from an injury. It is treated with wound care rather than as a planned procedure.

Partial, Total or Permanent: How the Options Compare

Option	What is removed	Does the nail grow back?	Usually chosen for	Healing
Partial avulsion	One or both side edges of the nail	Yes. The edge grows back out with the rest of the nail.	A first ingrown toenail	Tender for 1 to 2 weeks
Partial avulsion with phenol matrixectomy	The side edge plus the root cells that make it	No. That edge stays gone, so the nail is permanently a little narrower.	Ingrown toenails that keep coming back	Weeps for 2 to 4 weeks, sometimes up to 6
Total avulsion	The whole nail plate	Yes, over 12 to 18 months for a big toe	A badly damaged or infected nail; some severe fungal nails	The nail bed toughens over 4 to 6 weeks
Total avulsion with matrixectomy	The whole nail and its root	No. The toe heals with a firm skin surface where the nail was.	Thick, deformed nails that keep causing pain	4 to 6 weeks

When Is a Nail Avulsion Needed?

• Ingrown toenail: The most common reason. When conservative measures (proper cutting technique, cotton wicking, soaks) fail to resolve an ingrown nail, or when infection (paronychia) is present, removing the offending nail border provides immediate relief.
• Onychomycosis (toenail fungus): In severe fungal infections, removing the nail can improve the results of topical or oral antifungal treatment.
• Subungual hematoma: Large blood collections under the nail that don’t drain adequately through a small hole in the nail (trephination).
• Nail trauma: Severely damaged, partially detached, or crushed nails are removed so the nail bed can heal properly.
• Subungual exostosis: A bony growth beneath the nail that requires removing the nail for surgical access.
• Paronychia: Nail fold infections that have progressed to involve the nail itself.
• Pincer nail deformity: Severely curved (involuted) nails that cause pain by squeezing the soft tissue from both sides.

The Nail Avulsion Procedure: What to Expect

Before the Procedure

No fasting is required. Wear open-toed shoes to your appointment or bring sandals. Tell your podiatrist about any blood thinners, diabetes, or circulation problems.

Local Anesthesia — The Only ‘Painful’ Part

The digital nerve block is the most uncomfortable part of the procedure: one or two injections of local anesthetic (usually lidocaine) at the base of the toe. Within a few minutes the entire toe goes numb. Many patients are surprised at how comfortable the procedure itself is once the toe is numb — most feel only pressure, no pain.

The Avulsion

For a partial avulsion, a small elevator instrument loosens the nail border from the nail groove, surgical scissors or a nail splitter separates the border from the rest of the nail plate, and the freed portion is removed with forceps in one smooth motion. A small band at the base of the toe controls bleeding while this is done. A total avulsion follows the same process for the entire nail. Including the numbing, the whole procedure usually takes 15 to 30 minutes.

Matrixectomy (For Permanent Results)

If you want to prevent that edge from growing back — which we recommend for ingrown nails that have come back before — the nail matrix (the tissue that makes new nail) is destroyed at the base of the removed border. The standard technique is phenol chemical matrixectomy: 88% phenol is applied to the nail matrix for about a minute, then flushed with alcohol. In published studies, this prevents the ingrown edge from returning in about 95% of cases. You can read more on our toenail matrixectomy page.

Dressing and Aftercare

The area is dressed with antibiotic ointment and a non-stick bandage. The numbness wears off in about 3 to 6 hours. You walk out of the office on your own, and most people only need over-the-counter pain relievers afterward.

Recovery: How Long Does It Take?

Recovery after a nail avulsion follows a predictable timeline:

When	What is normal	What to do
First 24 hours	The numbness wears off after a few hours. Some throbbing and a little bleeding on the bandage.	Keep the foot up as much as you can. Keep the first bandage dry. Take acetaminophen or ibuprofen if you need it.
Days 2 to 7	Soreness settles. Clear or slightly bloody drainage. After phenol, yellow-brown weeping is expected.	Soak the toe for 10 minutes once or twice a day in warm water with Epsom salt or mild soap, pat dry, apply antibiotic ointment and a fresh non-stick bandage. Wear open-toed or roomy shoes.
Weeks 2 to 3	Tenderness fades and new pink skin forms. Most people are back in normal shoes.	Keep covering the area until it stops draining. Avoid pools, hot tubs and lakes until the skin has closed.
Weeks 3 to 6	Areas treated with phenol finish healing and the drainage stops.	Return to running and sports when it feels comfortable.
Months 3 to 18	If the nail was not treated with phenol, it grows back. A big toenail takes 12 to 18 months to regrow fully; smaller toes are quicker.	A new nail can look thin or wavy at first. See us if the edge starts to dig in again.

Most people go back to desk work the same day or the next day. Jobs that keep you on your feet may need two or three days of lighter duty.

Normal Healing or Infection?

Sign	Normal healing	Call your podiatrist
Pain	Improves day by day	Gets worse after day 3, or throbs at rest
Redness	Pink skin right around the wound	Spreads beyond the nail fold, or red streaks up the foot
Drainage	Clear to light yellow and lessening. After phenol, odorless yellow-brown weeping.	Thick, green or foul-smelling pus after the first week
Swelling	Mild, easing after day 3	Increasing, or spreading up the toe
Temperature	Slight warmth at the toe only	Warmth spreading up the foot, or a fever above 101°F

What Can Go Wrong

Complications are uncommon, and most are minor:

• Infection: Usually settles with soaks, and sometimes a short course of antibiotics.
• The ingrown edge comes back: This is common after a partial avulsion without phenol, and uncommon after a phenol matrixectomy. Occasionally a small sliver of nail (a spicule) regrows and needs a quick touch-up in the office.
• Longer drainage after phenol: The treated area can weep for up to 6 weeks before it closes. That is expected, not a sign of failure.
• A change in nail shape: After a partial matrixectomy the nail is narrower. After a total avulsion, the new nail can grow back thicker or uneven.

If You Have Diabetes or Poor Circulation

Healing is slower, and infections are more serious, when circulation or feeling in the feet is reduced. Before the procedure we check the pulses in your feet, and we may want a circulation test first. Expect a follow-up visit sooner than usual. Please don’t try to cut out an ingrown nail yourself.

Cost and Insurance

A nail avulsion for an ingrown, infected or damaged nail is a medically necessary procedure, so it is usually covered by insurance, including Medicare, subject to your deductible and copay. Matrixectomy is usually covered too. Purely cosmetic nail procedures are not. If you don’t have insurance, see our self-pay pricing or the ingrown toenail surgery cost guide.

Frequently Asked Questions

Does nail avulsion hurt?

The numbing injection is the uncomfortable part: a sharp sting for 15 to 30 seconds. After that you feel pressure but not pain. Soreness afterward is usually mild and handled with over-the-counter pain relievers.

Will my toenail grow back after a nail avulsion?

Yes, unless the root was treated. A fully removed big toenail takes 12 to 18 months to grow back, and smaller toenails are quicker. After a partial avulsion, the removed edge grows back out with the rest of the nail. If phenol was applied to the root, the treated edge does not regrow, and after a total matrixectomy the nail is gone permanently.

How long does it take to heal after toenail removal?

Most people are back in normal shoes in 2 to 3 weeks. If phenol was used, expect drainage for 2 to 4 weeks, sometimes up to 6, until the treated area closes.

Can I go back to work after nail avulsion?

Most patients return to desk work the same day or the next day. Jobs that require prolonged standing or walking may need 2 to 3 days of reduced activity. Bring open-toed shoes or flip-flops to your appointment.

Is nail avulsion covered by insurance?

Usually, yes. Nail avulsion for ingrown, infected or damaged nails is medically necessary, so most plans, including Medicare, cover it after your deductible and copay. Matrixectomy is usually covered too. Cosmetic nail procedures are not.

How do I prevent ingrown toenails from coming back?

Cut nails straight across — never round the corners. Keep nails at or just above the skin edge, and wear shoes with enough room for your toes. If an ingrown nail has already come back once, ask about a phenol matrixectomy, which stops the treated edge from regrowing.

The Bottom Line

Nail avulsion is a quick, safe in-office procedure for ingrown toenails, damaged nails and some fungal nails. With local anesthesia the procedure itself is essentially painless, and adding phenol stops a recurrent ingrown edge from coming back in about 95% of cases.

If you’re dealing with a painful ingrown toenail or nail problem, don’t wait — at our Howell and Bloomfield Township offices we can often do the procedure the same day.

Sources

1. Heidelbaugh JJ, Lee H. Management of the ingrown toenail. Am Fam Physician. 2009;79(4):303-308.
2. Haneke E. Nail surgery. Clin Dermatol. 2013;31(5):516-525.
3. Rounding C, Bloomfield S. Surgical treatments for ingrowing toenails. Cochrane Database Syst Rev. 2005;(2):CD001541.