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Whether they’re discoloured, cracked, ingrown, curly, or on the verge of falling off, toenail anatomy can be fragile and our nails can do funny things. A less commonly discussed issue is a secondary toenail. Also known as an accessory toenail or petaloid toenail, a secondary toenail is a sneaky little extra nail twin that grows alongside or beneath the pinky toenail. This abnormal toenail growth can be concerning, so it’s natural to have questions.
Signs You Have a Secondary Toenail
It’s important to know the difference between an ingrown toenail and an accessory toenail.
First, ingrown toenails can grow on any toe, whereas a secondary toenail appears on the fifth, smallest toe.
Ingrown toenails are also far more common, and pierce the skin rather than growing alongside the nail.
Secondary toenails are thin in nature and often don’t cause pain, infection or swelling like ingrown toenails do (although it is possible).
Lastly, ingrown toenails form on the side of the nail unit, whereas secondary toenails grow underneath the proper nail.
What Causes a Secondary Toenail?
A secondary toenail is a rare phenomenon.
It often makes an unexpected appearance after trauma or injury to the nail bed. You may notice your nail growing differently after stubbing or hurting it. Chronic pressure from tight shoes or less-than-perfect nail trimming can also coax this extra nail into existence.
Do You Need Surgery For Secondary Toenails?
Studies show that the treatment of choice for this extra pinky toenail is an excision, especially if it’s infected. A partial or total nail avulsion from Toronto’s Feet First Clinic may be the solution you need, but you’ll have to schedule a proper foot assessment to determine the best course of action.
Treatment of accessory toenails targets the original toenail, not the second one. The second toenail should grow properly after the “main” nail is removed.
