What Causes Petechiae?
Tiny blood vessels (capillaries) join the smallest points of your arteries to the smallest points of your veins. Petechiae appear when these capillaries burst open beneath the skin’s surface. Following this, the blood can leak under the skin and appear as a rash of pinpricks and are either red, purple or brownin colour.
A number of things can cause petechiae, including:
Sudden or prolonged straining: Petechiae can emerge on the face, neck, and chest prompted by prolonged straining during actions like coughing, vomiting, childbirth, and heavy weightlifting.
Medicationcan also cause petechiae, including:
- Anti-seizure drugs
- Blood thinners
- Heart rhythm drugs
- Nonsteroidal anti-inflammatory drugs (NSAIDs)
Underlying medical conditions: From sunburn and allergic reactions through to insect bites and various autoimmune diseases, petechiae can occur because ofa number of medical conditions. These include (and aren’t limited to):
- Viral fevers (Dengue, Ebola, and Yellow Fever) which inhibit blood clotting and causing bleeding under the skin.
Petechiae spots are sometimes the result of an underlying cause,and you should see a doctor if you experience them alongside any of the following symptoms:
- Blood clots that appear under the skin (hematomas)
- Bleeding gums
- Bleeding or bruising easier than normal
- Joint haemorrhage (hemarthrosis)
- Unusually heavy periods (menorrhagia)