An ingrown toenail happens when the edge of your nail curves and grows into the surrounding skin, and the earliest sign is usually a focused tenderness along one side of your toenail that hurts when you press on it or wear shoes. If you’re wondering whether that’s what you’re dealing with, there are specific things to look for at each stage, from mild discomfort to signs that need professional attention.
What It Looks and Feels Like Early On
The first thing most people notice is pain and tenderness right where the nail meets the skin on one side of the toe. It’s almost always the big toe. The skin in that spot may feel firm or slightly swollen, and pressing on it or bumping it against the inside of your shoe makes it worse. At this point you might not see much visually, just a slight puffiness or redness along the nail edge.
A helpful self-check: sit down, dry your foot, and gently press along both sides of the toenail with your fingertip. If one side is noticeably more tender or feels harder than the other, and you can see even mild redness or swelling there, that’s a strong indicator. Compare the toe to the same toe on your other foot. If it looks different (puffier, redder, or the skin seems to be pressing up against or starting to grow over the nail edge), you’re likely dealing with an ingrown nail.
How Ingrown Toenails Progress
Ingrown toenails follow a fairly predictable pattern that doctors break into three stages, and knowing where you fall helps you decide what to do next.
Stage 1 (mild): Redness, slight swelling, and pain when pressure is applied. The nail edge is digging in, but the skin isn’t broken and there’s no sign of infection. This is the stage where most people first notice something is off.
Stage 2 (moderate): The redness and swelling get significantly worse. The skin may start to ooze clear fluid or yellowish discharge, and you’ll feel pain even without pressing on the toe. This stage involves a local infection forming where the nail has broken through the skin.
Stage 3 (severe): The irritated skin starts producing extra tissue, sometimes called “proud flesh,” a small red, raw-looking bump of tissue that bleeds easily. The skin along the side of the nail becomes raised and overgrown, and there’s usually ongoing discharge. At this point the toe looks noticeably different from your other toes and the problem won’t resolve on its own.
Signs of Infection to Watch For
Not every ingrown toenail gets infected, but once the nail edge punctures the skin, bacteria can get in quickly. An infected ingrown toenail typically causes throbbing pain that doesn’t let up, even at rest. The skin around the nail becomes warm or hot to the touch, and the redness may spread beyond the immediate nail edge. You may see pus (white, yellow, or greenish fluid) collecting along the side of the nail or draining onto your sock.
If you notice any drainage or excessive redness around the toenail, that’s a clear signal to get professional care rather than continuing to manage it at home. Red streaks extending away from the toe toward your foot, or a fever, suggest the infection is spreading and needs prompt attention.
What Causes It in the First Place
The most common cause is cutting your toenails too short or rounding the corners. When you trim into the sides of the nail, the remaining edge can curve downward into the skin as it grows out. Cutting straight across prevents this. Tight shoes and socks that press the skin against the nail are the other major culprit, which is why ingrown toenails are especially common in people who wear narrow dress shoes, cleats, or steel-toed boots for long hours.
Stubbing your toe or dropping something on it can also push the nail into the skin. Some people are simply more prone because of their nail shape. Nails that are naturally curved or fan-shaped have less room to grow without catching the skin fold.
Is It Something Else?
A few other conditions can mimic an ingrown toenail. Paronychia is an infection of the skin fold around the nail that causes similar redness, swelling, and pain, but it’s usually triggered by a cut, hangnail, or broken skin rather than the nail itself growing into the tissue. A visible pus-filled abscess forming right next to the nail (rather than underneath the nail edge) points more toward paronychia.
Fungal nail infections can also cause thickened, distorted nails that press into the surrounding skin. The key difference is that fungal infections develop slowly over weeks or months, typically affect the nail’s color and texture (turning it yellow, white, or crumbly), and don’t usually cause the acute, localized tenderness along one nail edge that defines an ingrown toenail. It’s also possible to have both at the same time: a thickened fungal nail that’s more likely to become ingrown.
What You Can Do at Home
If you’re at the mild stage (tenderness and slight swelling, no pus, no significant redness), home care often works. Soak your foot in warm water for 15 to 20 minutes a few times a day to soften the skin and reduce swelling. After soaking, gently push the swollen skin away from the nail edge with a clean finger or cotton-tipped applicator. Wear open-toed shoes or the roomiest pair you have to keep pressure off the toe.
Don’t try to dig the nail out or cut a V-shape into the top of the nail. These are persistent myths that can make things worse or introduce infection. If a short trial of home care (a few days of soaking and keeping pressure off the toe) doesn’t bring improvement, it’s time to see a podiatrist.
When Professional Treatment Is Needed
A podiatrist can usually fix an ingrown toenail in a single office visit. The most common procedure involves numbing the toe and removing the portion of nail that’s embedded in the skin. If the problem keeps coming back, a small section of the nail root can be treated so that strip of nail doesn’t regrow. After a partial nail removal, healing typically takes six to eight weeks. Full nail removal (less common) takes eight to ten weeks.
If you have diabetes or poor circulation, skip home treatment entirely and see a podiatrist at the first signs. Diabetes slows healing and narrows blood vessels in the feet, which means even a minor nail problem can turn into a serious infection much faster than it would for someone else. The American Diabetes Association specifically recommends trimming toenails straight across to prevent ingrown nails, and contacting a doctor immediately if you notice any cuts, sores, or changes in your feet that aren’t healing.