Neglecting toenail fungus, formally known as onychomycosis, can lead to severe health consequences, warns Dr. Peter Joseph, a podiatrist at Allegheny Health Network. Beyond being an aesthetic concern, untreated toenail fungus can cause foot discomfort, making walking challenging due to the thickening and misshaping of infected nails, especially while wearing shoes.
The warm, moist environment inside shoes provides an ideal breeding ground for the fungus, leading to athlete’s foot—a condition characterized by red, itchy, and cracked skin. Moreover, untreated toenail fungus can escalate into a widespread infection, posing a serious risk for individuals with compromised immune systems, such as those with diabetes. The fungus may penetrate the skin, causing cellulitis, a potentially fatal bacterial skin condition. In severe cases, the infection could enter the bloodstream, becoming life-threatening.