Most people treat an ingrown toenail like a minor annoyance: clean it, soak it, keep it covered with clean bandages (changing them regularly), and hope it goes away. And to be honest, sometimes that works. But if left untreated long enough, an ingrown toenail can turn far more serious than soreness and swelling.

In rare but real cases, an infection from an ingrown toenail can spread to your toe bone, resulting in a condition known medically as osteomyelitis.

What Is a Bone Infection from Ingrown Toenails Called?

When a toenail grows into the surrounding skin (becoming ingrown), it punctures the tissue, creating an opening for bacteria to enter and cause infection. If a resulting infection isn’t treated, it can spread deeper into the tissue, enter the bloodstream, and eventually reach the underlying bone, causing osteomyelitis.

Osteomyelitis is a bacterial infection of the bone marrow that can affect any bone in the body; it causes painful swelling within the bone itself and, without prompt treatment, can lead to permanent bone damage or even necrosis (tissue death).

It’s not the most common outcome of an ingrown toenail, but it does happen, especially in people who wait too long to seek care or who have conditions like diabetes that tend to slow healing and can mask symptoms.

Symptoms of Osteomyelitis

What does a bone infection feel like?

In the beginning, the symptoms of osteomyelitis can overlap with those of a standard infection, which is part of what makes it tricky to diagnose. Common signs of osteomyelitis from an ingrown toenail include:

Persistent, deep bone pain in the toe or foot
Swelling, warmth, and redness around the area
Fever and chills
Fatigue or a general feeling of being unwell
Pus or discharge draining from the skin near the nail
Skin that looks discolored or darker near the infected site

One thing that distinguishes osteomyelitis from a typical ingrown toenail infection is the intensity of the pain. It tends to be deeper, more consistent, and it doesn’t respond the way you would expect to basic at-home care. If you’re soaking your foot nightly and the pain is worsening, this is a sign that something more serious is at play.

What Can Osteomyelitis Lead To?

A bone infection from ingrown toenails, left untreated, can quickly spiral into a worse medical condition, like the following:

Abscess formation: Pockets of pus can form and eventually break through the skin; abscesses require professional medical drainage.

Chronic osteomyelitis: Infections that aren’t fully treated can go dormant and come back months or even years later. Chronic osteomyelitis is harder to treat and is also more likely to cause lasting damage.

Osteonecrosis (bone death): If the infection cuts off blood flow to the bone, the tissue can die. While it is rare, some people with severe osteonecrosis require amputation.

Sepsis: In worst-case scenarios, bacteria can enter the bloodstream and trigger a full-body response; sepsis is life-threatening and requires emergency care.

Some people face a higher risk of these complications. If you have diabetes, a weakened immune system, or poor circulation, pay extra attention if you get an ingrown toenail and don’t wait to seek medical attention if you notice warmth, swelling, and persistent pain.

How Is Osteomyelitis Treated?

Treatment for osteomyelitis caused by an ingrown toenail depends on how far the infection has progressed, but options typically include:

IV and oral antibiotics: Most cases start with intravenous antibiotics for a few weeks, followed by oral antibiotics for several weeks after. Completing the full course of antibiotics is essential even if you feel like the infection has cleared before you’ve finished the bottle. Stopping early increases the risk of the infection returning or becoming chronic.
Needle aspiration: If an abscess has formed, a provider may drain the pus with a needle to relieve pressure and remove the infected fluid.
Surgery: When antibiotics alone aren’t enough to control the spread, severe infections may require surgical removal of infected or dead bone tissue.

After treatment, you’ll need to take time to recover. Some antibiotic courses take months to complete, and your symptoms may not subside right when you start taking them, so be patient with your doctor’s treatment plan. But catching these complications early makes a big difference in how involved the treatment needs to be.

When Should You See a Podiatrist for an Ingrown Toenail?

Most ingrown toenails can be managed at home in the early stages, but you should see a podiatrist if you notice any of the signs below.

Your pain is getting worse, not better, after several days of home treatment.
You notice pus, discharge, or a foul smell coming from the toe.
The skin around the nail is hot, red, and swollen beyond the nail itself.
You have a fever.
You also have diabetes, poor circulation, or an immune system condition.

For more detailed information on what happens across the stages of an ingrown toenail treatment, read our previous blog on the topic here.

Contact the Foot Specialists of Birmingham

A bone infection from an ingrown toenail is a serious complication, but it’s also preventable and treatable when you get the right care early. At Foot Specialists of Birmingham, Dr. Linde and our team treat ingrown toenails before they become bigger problems. Don’t wait until it seems severe. Get in touch, let us take a look, and get the treatment you need.