Cause: Pre-existing Medical Conditions
If you already have a pre-existing medical condition, it could be a contributing factor to the sudden appearance of petechiae. Some examples of these conditions include Leukemia, vitamin K deficiency, scurvy, thrombocytopenia, and vasculitis. If you have been diagnosed with any of these conditions and notice the sudden development of petechiae, it is important to consult with your doctor to discuss appropriate treatment options.
Cause: Medication
Petechiae can also be caused by certain medications. If you observe the development of petechiae after being prescribed a medication, it is important to inform your physician immediately. Your doctor may recommend trying a different prescription if the medication is identified as the cause.