A 74-year-old man developed multiple infected lumps on his arm, wrist, and finger months after being injured by a tree branch. Doctors identified the infection as sporotrichosis caused by a fungus called Sporothrix schenckii using advanced genetic testing. He was successfully treated with itraconazole tablets for several months and completely recovered. This case is unusual because sporotrichosis typically affects people with weakened immune systems, but this patient had a normal immune system.