Ulceroglandular tularemia is a bacterial infection caused by the bacterium Francisella tularensis. It typically occurs when a person comes into contact with infected animals, especially rabbits or rodents, or through bites from infected insects. The infection is characterized by the development of a painful ulcer at the site of entry, along with swollen lymph nodes. Symptoms may include fever, chills, and fatigue, often accompanied by headache and muscle aches. Diagnosis is usually confirmed through laboratory tests, and treatment typically involves antibiotics. If left untreated, ulceroglandular tularemia can lead to more severe complications.