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What are the symptoms of dengue?

Dengue is a mosquito-borne viral infection. Symptoms may include sudden fever, severe headache, pain behind the eyes, muscle or joint pain, nausea, vomiting and rash. These symptoms overlap with other illnesses, so symptoms alone cannot confirm dengue.

When should you get tested?

The appropriate test depends on the day of illness and clinical presentation. NS1 antigen or molecular tests may be useful early, while IgM antibody testing is generally more useful later. A clinician should select and interpret tests in context. A negative result may not exclude dengue if testing is done at the wrong time.

Dengue warning signs: when to seek urgent care

Seek urgent medical assessment if suspected or confirmed dengue is accompanied by any of these warning signs, especially as the fever begins to settle:

  • Severe or persistent abdominal pain or tenderness
  • Repeated vomiting or inability to keep fluids down
  • Bleeding from the nose or gums, blood in vomit or stool, or unusual bleeding
  • Marked drowsiness, confusion, restlessness or fainting
  • Difficulty breathing, cold or clammy skin, or severe weakness
  • Passing much less urine or signs of dehydration

Dengue can worsen around the time fever subsides. Do not judge recovery by temperature alone. Severe or rapidly worsening symptoms require emergency care rather than waiting for a clinic appointment.

How is dengue managed?

There is no specific antiviral medicine routinely used to cure dengue. Care focuses on clinical monitoring, adequate oral fluids when tolerated, rest and early recognition of warning signs. Some patients need hospital observation or intravenous fluids depending on their condition and risk factors.

Avoid aspirin and non-steroidal anti-inflammatory drugs such as ibuprofen unless your treating clinician specifically advises otherwise, because they can increase bleeding risk. Do not self-medicate. Ask a clinician about appropriate fever relief and dosing.

Does every dengue patient with low platelets need a transfusion?

No. A low platelet count alone does not automatically mean platelet transfusion is needed. Decisions depend on bleeding, overall clinical condition, laboratory trends and clinical guidance. Monitoring the whole clinical picture is more useful than focusing on a single platelet result.

Why follow-up matters

Symptoms and blood counts can change during dengue. Follow medical advice about review, fluids and repeat tests. Pregnant people, infants, older adults and people with significant chronic illnesses may need earlier assessment.

How can dengue be prevented?

  • Remove standing water from containers, coolers, trays and other mosquito-breeding sites.
  • Use an effective mosquito repellent and clothing that reduces exposed skin.
  • Use window screens or nets where appropriate and follow local public-health advice.

When should you consult a doctor?

Seek medical review for persistent fever, worsening symptoms, repeated vomiting, reduced fluid intake, bleeding, significant weakness or any warning sign. Malaria, chikungunya, enteric fever and other illnesses can resemble dengue and may need different testing and treatment.

Dengue assessment in Ahmedabad

Fever Plus Clinic – Centre for Infectious Diseases provides consultations at its Nikol and SG Highway branches. Contact the clinic to arrange an assessment. Severe symptoms or dengue warning signs require urgent medical care.

Fever Plus Clinic — Nikol

Call +91 756 765 2424

Branch details

Fever Plus Clinic — SG Highway

Call +91 756 765 2828

Branch details

Medical information reviewed by:

Dr. Mit Dharsandiya

FNB (Infectious Diseases), Fever Plus Clinic

Last medically reviewed: October 2026

Frequently asked questions about dengue

Can dengue become serious after fever comes down?

Yes. Warning signs may appear as fever subsides. Seek urgent care for abdominal pain, persistent vomiting, bleeding, drowsiness, breathing difficulty or reduced urine output.

Which test confirms dengue?

The appropriate test depends on the day of illness. NS1 antigen or molecular testing may help early; IgM testing is generally more useful later. Results should be interpreted with symptoms and examination.

Does a low platelet count mean I need a transfusion?

Not necessarily. Decisions depend on the overall clinical picture, bleeding and relevant laboratory findings—not platelet count alone.

Which painkillers should be avoided?

Avoid aspirin and NSAIDs such as ibuprofen unless specifically advised by your treating clinician, as they may increase bleeding risk.

Can dengue be managed at home?

Some patients can be managed at home with clinician-directed fluids, monitoring and follow-up. Others need hospital care. Warning signs, dehydration, other illnesses and ability to maintain fluids affect the decision.