A toenail infection with visible pus is a strong sign that bacteria have invaded the tissue around the nail. The image above shows swelling, redness, and yellow discharge coming from the side of the toenail, which is commonly associated with a condition called paronychia or an infected ingrown nail. This type of infection can become serious if not treated properly.
How Toenail Infections Start
Most toenail infections begin when the skin around the nail is damaged. This can happen due to tight shoes, aggressive nail trimming, nail biting, or small injuries. When bacteria enter through these openings, they grow quickly, especially in warm and moist environments like inside shoes. Over time, the body reacts by producing pus, which is a mixture of dead cells, bacteria, and immune response.
People who walk a lot, have sweaty feet, or wear closed shoes for long periods are more likely to develop this condition. Those with diabetes or weak immune systems face even higher risks.
Common Symptoms
The early signs of infection include redness, tenderness, and mild swelling around the nail. As the condition worsens, pain increases and pus begins to form. The skin may feel tight, hot, and shiny, and the nail may look lifted or distorted. In some cases, the infection can spread deeper, causing fever or difficulty walking.
Why Professional Treatment Is Important
Although some people try home remedies, a pus-filled nail infection should be evaluated by a medical professional. A podiatrist or healthcare provider can drain the pus safely, clean the area, and prescribe antibiotics if necessary. This prevents the bacteria from spreading and helps the nail heal properly.
Trying to squeeze or cut the infected area at home can make the problem worse and increase the risk of permanent nail damage.
Preventing Toenail Infections
Good foot care is the best way to avoid these infections. Keep your feet clean and dry, trim nails straight across, and avoid cutting them too short. Wear shoes that allow airflow and do not squeeze your toes. Regularly check your feet, especially if you have diabetes or circulation problems.
Final Thoughts
A toenail infection with pus is not just a cosmetic issue—it is a medical condition that requires proper care. Early treatment, good hygiene, and preventive habits can protect your feet and keep your nails healthy for the long term.


