Petechiae can sometimes occur due to harmless causes, such as prolonged straining, heavy coughing, or vomiting. These can cause increased pressure on your blood vessels, which can lead to ...

Crying, prolonged coughing, and repeated vomiting may result in petechiae as well. In cases of straining, petechiae typically form on the neck, face, and chest, and they tend to be very small in size.