Toenail fungus is common, leaving nails thick, brittle, yellow, or crumbly, but it can escalate into a serious infection if ignored. Early recognition of warning signs is crucial to prevent complications. Pain, throbbing, or tenderness in a toe that previously only showed cosmetic changes often signals that the fungus has progressed to a bacterial or deeper infection. Red, swollen, or inflamed skin around the nail and any oozing, particularly if yellow, green, or foul-smelling, are major red flags indicating the body is fighting a bacterial invader. Untreated infections can spread quickly, sometimes leading to cellulitis or even bone involvement, which may require intensive treatments like IV antibiotics or surgery. Immediate medical attention is essential when these symptoms appear, as home remedies or delayed action can worsen the situation. Preventive measures help reduce risk, including daily foot hygiene, thorough drying, avoiding barefoot exposure in public areas, and trimming nails straight to prevent jagged edges and ingrown nails. For persistent or severe cases, consulting a podiatrist is the safest route to protect foot health, manage infection, and prevent long-term complications, ensuring that toenail fungus remains a manageable condition rather than a dangerous infection.

source: https://myfootdoc.com/how-to-know-if-your-toenail-fungus-is-infected/