How Do I Know If I Have an Ingrown Toenail?

An ingrown toenail causes pain at the corner of the nail where it presses into or curves into the surrounding skin, most often on the big toe. If you’re feeling a sharp or throbbing tenderness along the edge of your toenail, especially when you press on it or wear shoes, that’s the hallmark sign. The good news: most cases are mild and can be managed at home.

What an Ingrown Toenail Looks and Feels Like

The earliest sign is tenderness along one side of the toenail, right where the nail meets the skin fold. You might notice the skin in that area looks slightly red and puffy. At this point, the pain mostly shows up when something presses against it, like a tight shoe or a blanket at night.

As it progresses, the redness and swelling become more obvious even without pressure. The skin along the nail edge may feel warm to the touch and look noticeably inflamed. You might see clear or yellowish fluid weeping from the area. Walking can become uncomfortable, and even light contact with the toe hurts.

In more advanced cases, the body starts building up extra tissue around the nail edge. This appears as small, raw-looking bumps of reddish tissue (called granulation tissue) that bleed easily. The skin fold next to the nail may look enlarged or thickened. At this stage, there’s usually significant discharge and persistent pain.

Signs It’s Infected

Not every ingrown toenail gets infected, but the risk increases the longer it goes untreated. Signs that infection has set in include pus draining from the nail edge, increasing redness that spreads beyond the immediate area of the nail fold, and pain that worsens rather than staying stable. The skin around the toe may feel hot, and you might notice a foul smell. If the redness is spreading up your toe or foot, that’s a sign the infection is moving into surrounding tissue and needs prompt attention.

Ingrown Toenail vs. Other Toe Problems

A few conditions can mimic an ingrown toenail, and it helps to know the difference. Paronychia is an infection of the skin fold around a nail, but it more commonly affects fingernails and can occur along any edge, not just the corners. It often develops after the cuticle is damaged. An ingrown toenail can actually trigger paronychia, so the two sometimes overlap.

Fungal nail infections cause thickening, discoloration, and crumbling of the nail itself but don’t typically produce the localized corner pain that defines an ingrown toenail. That said, a thick fungal nail can change shape enough to start growing into the skin, so both problems can exist at once. If your nail looks yellow, brittle, or unusually thick in addition to the edge pain, a fungal issue may be contributing.

A bruise under the nail (subungual hematoma) causes a dark discoloration and pressure-like pain across a broader area of the nail, rather than the sharp, localized pain at the nail’s edge.

What Causes Them

The most common cause is cutting your toenails incorrectly. Rounding the corners, cutting them too short, or digging into the sides of the nail all leave behind tiny spikes of nail that can grow into the skin as the nail lengthens. Tearing or pulling at toenails instead of cutting them cleanly creates the same problem.

Tight or narrow shoes push the skin into the nail edge for hours at a time, which is why ingrown toenails are especially common in people who wear pointed dress shoes or snug athletic footwear. Stubbing your toe or dropping something on it can also push the nail into the surrounding skin and trigger the process. Some people are simply more prone because of their nail shape: nails that naturally curve more sharply at the edges are at higher risk.

How to Treat a Mild Ingrown Toenail at Home

If your toe is mildly tender and red but you don’t see pus or spreading redness, home care is usually enough. Soak your foot in warm, soapy water for 15 to 20 minutes a few times a day. This softens the nail and skin, reduces swelling, and keeps the area clean. After soaking, gently dry the toe and wear open-toed shoes or sandals to take pressure off the area. Over-the-counter pain relievers like ibuprofen or acetaminophen can help manage discomfort.

One important rule: do not try to cut the nail down at the sides to “free” the ingrown edge. This feels like a logical fix, but it actually worsens the problem long-term by creating an even sharper nail edge that digs in deeper as it grows back. Let the nail grow out past the skin fold, then trim it straight across.

When Home Care Isn’t Enough

If you see pus, the redness is spreading, or the pain is getting worse rather than better after a few days of soaking, it’s time for professional treatment. A provider can numb the toe and trim or remove the portion of nail that’s digging into the skin. This is a quick in-office procedure, and relief is usually immediate.

For ingrown toenails that keep coming back on the same toe, a provider may recommend removing a strip of the nail along with the underlying nail bed tissue. This prevents that section of nail from regrowing, which solves the recurring problem permanently.

Extra Risks for People With Diabetes

Ingrown toenails are a more serious concern if you have diabetes. Reduced blood flow to the feet slows healing, and even a minor infection at the nail edge can progress into an open wound or ulcer that becomes difficult to manage. Diabetic neuropathy, the nerve damage that causes numbness in the feet, means you might not feel the early pain signals that would normally alert you to the problem. An ingrown nail can worsen significantly before you notice it.

If you have diabetes, checking your feet daily for redness, swelling, or any changes around the toenails is essential. Any sign of an ingrown toenail warrants a visit to your provider rather than attempting home treatment, because the window between a minor irritation and a dangerous infection is much narrower.

How to Prevent Ingrown Toenails

Cut your toenails straight across, following the natural shape of the nail tip, and avoid cutting them too short. The edge of the nail should be visible above the skin fold. After cutting, file any sharp corners smooth using single strokes in one direction to avoid tearing the nail. Wear shoes that give your toes room to move, and if you’re active in sports, make sure your athletic shoes fit properly without compressing the front of your foot.