Forensic Medicine · Death & Postmortem Changes

Algor Mortis & Postmortem Caloricity

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Algor Mortis — Definition

Algor mortis is the postmortem cooling of the body until it reaches the temperature of the surrounding environment.

Mechanism

After death:

  • Heat production ceases.
  • Heat is gradually lost by radiation, conduction, convection and evaporation.

Factors Affecting Algor Mortis

Factors accelerating cooling

  • Cold environment
  • Thin body build
  • Naked body
  • Air movement (wind)
  • Immersion in water
  • Hemorrhage before death

Factors delaying cooling

  • Hot environment
  • Obesity
  • Thick clothing
  • Fever before death
  • Septicemia
Clinical

Medicolegal importance

  • Estimation of time since death.
  • Useful during the early postmortem period.