Why do dengue symptoms sometimes worsen on the 3rd to 5th day?

By Rebecca L. Castillo, MD

Answer:
Dengue has a “critical phase” around Day 3 to Day 5, when fever may go down but the risk of complications goes up. This is when plasma leakage, dehydration, and bleeding may occur. Warning signs include:

  • Severe abdominal pain
  • Persistent vomiting
  • Sudden weakness or restlessness
  • Bleeding gums or nose
  • Very low platelet count

If any of these appear, bring the patient to the hospital immediately. Early hydration and monitoring prevent severe dengue.


Share this Article
Facebook
X
LinkedIn
WhatsApp
Email

More News

banner-copy4-copy
Red Lanterns and Roses: How February Celebrates the Filipino Heart
From Lunar New Year festivities to Valentine’s Day traditions, February in the Philippines becomes a...
Filipinos Queue Overnight For Chance Of Getting First Vaccine Dose
The Prayer He Didn’t Finish

By Raffy Castillo As the month comes to a close, many of us feel compelled to tie loose

Filipinos Queue Overnight For Chance Of Getting First Vaccine Dose
Philippine Health Policy Update (As of Jan. 26, 2026)
Key Developments from DOH, PhilHealth, and Congress — What Changed, What its implications are, What to Wa...
Filipinos Queue Overnight For Chance Of Getting First Vaccine Dose
In search of elusive happiness

By Henrylito D. Tacio “Happiness is when what you think, what you say, and what you do are

Filipinos Queue Overnight For Chance Of Getting First Vaccine Dose
The New Pork Barrel: MAIFIP and the Betrayal of Universal Health Care
By Dr. Tony Leachon The proposed Medical Assistance for indigent and financially incapacitated Program (MAIF...
banner-copy4-copy
Diverticulosis and Diverticulitis: Common, Manageable, and Often Misunderstood
iverticulosis is one of the most common findings seen during colonoscopy, especially in adults over 50. I...
Filipinos Queue Overnight For Chance Of Getting First Vaccine Dose
Living Well With Diverticulosis
By H&L Editorial Team Diverticulosis doesn’t require strict rules—it rewards smart daily habits. These...
Filipinos Queue Overnight For Chance Of Getting First Vaccine Dose
Prescribed Lifestyle Practices for Patients With Diverticulosis
By Reuben Ricallo Diverticulosis is common and usually harmless. The goal of lifestyle care is not to “c...
Filipinos Queue Overnight For Chance Of Getting First Vaccine Dose
Diverticulosis in the Philippines: The Quiet ‘Pouches’ That Matter

(Prevalence • Pathophysiology • Risk Factors • Treatment • Prevention)

Filipinos Queue Overnight For Chance Of Getting First Vaccine Dose
The Power of Vision
By Henrylito D. Tacio “Vision without action is merely a dream. Action without vision just passes the t...