The Bottom Line

A matricectomy is a procedure that permanently destroys all or part of the nail matrix — the growth center at the base of the nail — to prevent a nail or portion of a nail from ever growing back. It's a definitive solution for chronic, recurrent nail problems like ingrown toenails that keep returning after temporary removal, severely damaged nails, or nails affected by tumors. The procedure is done under local anesthesia in an office setting.

What Is a Matricectomy?

A matricectomy (also called matrix ablation) is the permanent surgical destruction of the nail matrix — the tissue responsible for producing the nail plate. Once the matrix is destroyed, the nail (or the treated portion of the nail) will not regrow. This is distinct from a simple nail avulsion (temporary removal), where the nail eventually grows back because the matrix remains intact.

Matricectomy can be total (destroying the entire matrix, so no nail regrows) or partial (destroying one side of the matrix, permanently narrowing the nail). Partial matricectomy is by far the most common — it's the definitive treatment for chronic ingrown toenails, permanently removing just the problematic nail border while preserving a normal-looking central nail.

Two main techniques are used:

  • Chemical matricectomy: Phenol (88%) or sodium hydroxide (10%) is applied to the matrix after nail removal, chemically destroying the growth cells. This is the most commonly performed technique — simple, quick, and effective with 95-98% success rates.
  • Surgical matricectomy: The matrix tissue is physically excised (cut out) with a scalpel. More precise but involves a longer procedure and sutures. Used when phenol is contraindicated or when tissue needs to be sent for pathology.

Signs That a Matricectomy May Be Recommended

Your dermatologist or podiatrist may recommend a matricectomy if you have recurrent ingrown toenails that keep returning after conservative treatment or temporary nail removal, a nail deformity that causes chronic pain, repeated infection, or difficulty wearing shoes, a nail permanently damaged by trauma that regrows abnormally, severe fungal nail infection (onychomycosis) that has destroyed the nail and failed all antifungal treatments, a nail tumor that requires complete removal of the nail unit, or a nail condition (like pincer nail deformity) that causes chronic pain and cannot be corrected by other means.

What Causes the Conditions That Lead to Matricectomy?

The most common reason for matricectomy is chronic ingrown toenails (onychocryptosis). Ingrown nails develop when the nail edge grows into the surrounding skin fold, causing pain, redness, swelling, and often infection. Contributing factors include improper nail trimming (cutting nails too short or rounding the edges), tight-fitting shoes that press on the nail, genetic nail shape (naturally curved or wide nails), trauma to the nail, and conditions like fungal infection that thicken and distort the nail.

When ingrown toenails recur repeatedly despite proper nail care and temporary nail removal, matricectomy offers a permanent solution by preventing the problematic nail edge from ever growing back.

Treatment: What a Matricectomy Involves

Before the procedure: Your doctor examines the nail and discusses whether partial or total matricectomy is appropriate. No special preparation is usually needed.

The procedure (chemical matricectomy — most common):

  1. Digital nerve block: Local anesthetic numbs the entire toe or finger (brief stinging, then complete numbness).
  2. Tourniquet: A small band reduces bleeding.
  3. Nail removal: The entire nail plate or the offending nail border is removed using a nail elevator.
  4. Matrix ablation: Cotton-tipped applicators soaked in phenol (88%) are applied to the exposed matrix for 30-60 seconds, repeated 2-3 times. The phenol chemically destroys the matrix cells.
  5. Neutralization: Alcohol is applied to neutralize remaining phenol.
  6. Dressing: Antibiotic ointment and a bandage are applied. No sutures are needed.

The entire procedure takes 15-30 minutes.

Recovery:

  • Days 1-3: Mild to moderate soreness once anesthesia wears off. Elevate the foot and take acetaminophen or ibuprofen. Keep the bandage clean and dry.
  • Weeks 1-2: The area drains clear to slightly yellow fluid as the chemical burn heals — this is normal. Soak daily in warm water, apply antibiotic ointment, and re-bandage. Wear open-toed shoes or loose footwear.
  • Weeks 2-4: The wound granulates and epithelializes (new skin covers the area). Most patients return to normal shoes and activities by 3-4 weeks.
  • Full healing: 4-6 weeks. The remaining nail (in partial matricectomy) narrows permanently, looking slightly thinner than before but cosmetically acceptable.

Success rate: Chemical matricectomy with phenol has a 95-98% success rate for preventing nail regrowth in the treated area. In the rare 2-5% of cases where regrowth occurs, the procedure can be repeated.

When to See a Dermatologist

See a board-certified dermatologist or podiatrist if you have ingrown toenails that keep recurring despite proper nail care, a chronically painful or deformed nail that affects your daily activities, signs of nail infection (redness, swelling, pus) that doesn't resolve with antibiotics, or a nail growth or discoloration that needs evaluation. After a matricectomy, contact your provider if you notice signs of infection (increasing redness, warmth, purulent drainage, fever), excessive bleeding, or if the wound doesn't show signs of healing after 3-4 weeks.

Frequently Asked Questions

Will my nail look normal after a partial matricectomy?

After a partial matricectomy, the remaining nail is permanently narrower — typically by 2-4mm on the treated side. Most patients find the cosmetic result very acceptable, especially compared to the chronic pain and infection of recurring ingrown nails. The remaining nail plate grows normally and looks natural, just slightly narrower than before.

Is a matricectomy painful?

The local anesthetic injection is the most uncomfortable part — a stinging sensation at the base of the toe lasting 15-30 seconds. Once numb, you feel no pain during the procedure. Post-procedure soreness is mild to moderate for 24-48 hours and well-managed with over-the-counter pain medication. The phenol burn area may feel tender for 1-2 weeks as it heals.

Can I walk after a matricectomy?

Yes, you can walk immediately after the procedure, though you should minimize walking for the first 24-48 hours. Wear open-toed shoes or loose sandals for 1-2 weeks. Most patients return to normal shoes and full activity within 3-4 weeks. Avoid running and vigorous exercise for 2-3 weeks.

What's the difference between a matricectomy and a nail avulsion?

A nail avulsion is temporary removal of the nail plate — the matrix is left intact, so the nail grows back in 3-6 months. It provides temporary relief but the underlying problem (like an ingrown nail) often recurs. A matricectomy permanently destroys the matrix, preventing regrowth. It's the definitive, permanent solution when the nail problem keeps recurring.

References

  1. Bostanci S, Ekmekci P, Akyol A. Chemical matricectomy with phenol for the treatment of ingrown toenail: a review of the literature and follow-up of 172 treated patients. Acta Derm Venereol. 2001;81(2):108-111.
  2. Haneke E. Nail surgery. Clin Dermatol. 2013;31(5):516-525.
  3. Rounding C, Hulm S. Surgical treatments for ingrowing toenails. Cochrane Database Syst Rev. 2012;(4):CD001541.
  4. Becerro de Bengoa Vallejo R, Losa Iglesias ME, et al. Phenol matricectomy with nail matrix curettage. J Am Podiatr Med Assoc. 2008;98(4):281-284.

Trusted Resources

  • American Academy of Dermatology Association. "Nail Conditions." aad.org
  • American Podiatric Medical Association. "Ingrown Toenails." apma.org
  • Mayo Clinic. "Ingrown Toenails." mayoclinic.org

Consult a board-certified dermatologist or podiatrist to determine if matricectomy is the right option for your nail condition.