Monday, July 15, 2024

Reason For Skin Growth Under Nails

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For as long as I can remember, I’ve been getting gel manicures without fail every two weeks. Then, a few years ago, after taking off my polish, I noticed that the skin underneath my fingernails was protruding further than my actual nail. I originally thought it was a nail growing under nail situation, but after close inspection, I realized it was just skin. Regardless, it made it uncomfortable to trim them short, and I had to be wary when I was at the salon. I still continued my biweekly manicure appointments, and it wasn’t until much later that I learned what it actually was: an overgrown hyponychium.

When my city closed all nonessential businesses back at the start of the pandemic in 2020, one of the first things I did was remove my gel manicure. What I noticed in the weeks that followed surprised me. The skin under my nails began to recede, and they started to look normal again on a few fingers. After a few Google searches, I read about something called the hyponychium and how it could be the cause of my past discomfort. If you’ve never heard of the hyponychium (pronounced hai-pow-ni-kee-uhm) before, you’re not alone. Curious to learn more, and in case others were experiencing the same hyponychium overgrowth that I had been, I reached out to professional manicurists to answer all my biggest questions. Keep reading to learn what the hyponychium is, how to combat an overgrown hyponychium, and what you can do about skin growing under nails.

Experts Featured in This Article

Brittney Boyce is a consulting nail artist for Orly and celebrity manicurist.
Vanessa Sanchez McCullough is a celebrity nail artist.

What Is the Hyponychium?

“The hyponychium is the tissue under the free edge of the nail,” Brittney Boyce tells PS. “It seals the nail plate to the tip of the finger. It also acts as a seal to prevent pathogenic bacteria from entering the finger.”

The hyponychium is located near the fingertip, which means that when I was attempting to trim my nails shorter, I was having a hard time completing the task without also trimming the hyponychium, which was ultimately the cause of a lot of discomfort. This can cause thick skin under toenails, too. Although I finally had a name for what I was seeing, I was still interested in learning what caused the overgrowth in the first place, as well as what I could do to prevent it.

What Can Cause an Overgrown Hyponychium?

Boyce says there are three main reasons that can cause the hyponychium underneath the nails. “The most common reason is because the hyponychium attaches to the underside of the nail as it grows,” she says. “For some, it seems to be genetic, while for others, it may be caused by wearing your nails long with gel or acrylic nails for too long, contact dermatitis, or some sort of nail injury. Nail psoriasis and fungal infections can also cause this to happen.”

If you’re experiencing symptoms that could be related to nail psoriasis or a fungal infection, such as odor coming from the nail, separation of the nail from the nail bed, or nail crumbling, it may be time to reach out to a dermatologist.

Then, there’s also another surprising reason: “Biting your nails can also lead to an overgrowth, and picking it can actually lead to infections,” says Boyce. “Be gentle with it, and if it starts to look discolored or smell, see a dermatologist.”

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