Several factors contribute to variability in diagnostic criteria:
Geographical differences: Diagnostic criteria can vary between countries and even regions within a country, influenced by local medical guidelines and healthcare practices. Evolving medical knowledge: As new research emerges, diagnostic criteria may be updated to reflect the latest understanding of a disease. Resource availability: The availability of diagnostic tools and expertise can impact how diseases are diagnosed, particularly in low-resource settings. Cultural and social factors: Cultural perceptions and social stigmas can influence how symptoms are reported and diagnosed.
