Symptom combination
High Fever and Headache
55 conditions commonly cause both high fever and headache in India.
Conditions causing both symptoms
Dengue fever [classical dengue]
Moderate
high fever, severe headache, pain behind eyes, joint pain
ℹ️ within 24 hours
Other acute sinusitis
Moderate
facial pain, nasal congestion, thick nasal discharge, headache
ℹ️ if symptoms persist beyond 10 days or are severe
Unspecified malaria
Serious
fever, chills, sweating, headache
ℹ️ within 24 hours
Infectious gastroenteritis and colitis, unspecified
Moderate
diarrhea, stomach cramps, nausea, vomiting
ℹ️ if symptoms persist beyond 2-3 days or dehydration occurs
Chlamydial pneumonia
Serious
persistent dry cough, fever, chest pain, difficulty breathing
ℹ️ within 24 hours
Leptospirosis icterohemorrhagica
Emergency
high fever, yellowing of eyes, severe headache, muscle pain
ℹ️ immediately - requires hospitalization
Unspecified viral encephalitis
Emergency
high fever, severe headache, confusion, seizures
ℹ️ immediately - call ambulance
Acute necrotizing hemorrhagic encephalopathy, unspecified
Emergency
sudden severe headache, confusion, seizures, weakness
ℹ️ immediately
Frequently asked questions
What causes high fever and headache together in India?
Common conditions that cause both include:
Dengue fever [classical dengue], Other acute sinusitis, Unspecified malaria, Infectious gastroenteritis and colitis, unspecified, Chlamydial pneumonia.
When should I see a doctor for high fever and headache?
See a doctor within 24 hours if symptoms are severe,
persistent beyond 2 days, or worsening. Call 112 for any emergency.
Important: This is general health information only — not medical advice.
Always consult a qualified doctor. Emergency: call 112.
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