Differential Diagnosis for Morning Fever Daily for 15 Days

• Single Most Likely Diagnosis
  • Infections such as tuberculosis (TB) or other chronic infections: Morning fever can be a characteristic presentation of TB, especially if it's accompanied by other symptoms like cough, weight loss, and night sweats.
• Other Likely Diagnoses
  • Malaria: Depending on the geographical location, malaria can cause daily fevers, especially if it's a specific type like Plasmodium vivax.
  • Brucellosis: This zoonotic infection can cause undulant fever, which may present as morning fever.
  • Lymphoma: Certain types of lymphoma can cause persistent fevers, including morning fevers, as part of their systemic symptoms.
• Do Not Miss Diagnoses
  • Endocarditis: Although less common, infective endocarditis can present with persistent fever and may not have a clear source of infection.
  • Abscesses or septic emboli: These conditions can cause persistent fevers and may not always have localized signs of infection.
  • Connective tissue diseases (e.g., lupus, rheumatoid arthritis): These can cause daily fevers as part of their systemic manifestations.
• Rare Diagnoses
  • Factitious fever: This is a condition where the patient intentionally induces or falsifies fever, which could present as a daily morning fever.
  • Familial Mediterranean Fever (FMF): A genetic disorder that causes recurrent episodes of fever, often accompanied by abdominal, chest, or joint pain.
  • Cyclic neutropenia: A rare blood disorder characterized by periodic episodes of neutropenia, which can lead to recurrent infections and fevers.