What is petechial hemorrhage?

Petechial hemorrhage refers to small, pinpoint bleeds that occur under the skin or mucous membranes, often appearing as red or purple spots. These hemorrhages are commonly associated with conditions where there is an increase in venous pressure, such as strangulation. During strangulation, the pressure can restrict blood flow, leading to the rupture of small blood vessels in areas like the eyes, resulting in the characteristic pinpoint hemorrhages. This symptom can be a significant indicator in forensic investigations related to asphyxiation or other forms of suffocation.

The focus on these pinpoint hemorrhages in the eyes and other areas, in conjunction with other evidence of trauma, can help medical examiners and law enforcement professionals ascertain causes of death or injury in suspicious circumstances. Understanding the appearance and implications of petechiae is essential for peace officers, as it aids in their investigations and assessments of potential crimes, particularly those involving assault or homicide.