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GlossaryPetechiae

small, red or purple skin spots from broken capillaries

Petechiae are small, red or purple spots on the skin caused by minor bleeding from broken capillary blood vessels. They are typically less than 2 millimeters in diameter and do not blanch when pressed. While they can be harmless and result from minor trauma, they may also indicate more serious conditions such as infections, blood disorders, or other underlying health issues.

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research Petechiae on the Fingertips as Presenting Symptom of Dermatitis Herpetiformis Duhring

30 citations, March 2009 in “Journal of the European Academy of Dermatology and Venereology”

Red spots on fingertips can be a sign of a skin condition linked to gluten sensitivity, treatable with a gluten-free diet.

research Cutaneous Manifestations in COVID-19: Report on 31 Cases from Five Countries

7 citations, January 2021 in “Biology”

Some COVID-19 patients have different skin problems, which might be the only sign of the virus or related to other health issues.

research Caution in the Time of Rashes and COVID-19

7 citations, July 2020 in “Journal of The American Academy of Dermatology”

Skin symptoms linked to COVID-19 are hard to confirm, and more testing is needed to identify which are truly caused by the virus.

research Novel Application of 1064-Nm Picosecond Nd:YAG Laser for Male Androgenetic Alopecia Treatment

January 2024 in “PubMed”

A new laser treatment may help regrow hair in men with pattern baldness and has minimal side effects.

Comparison of 1064-nm Nd:YAG Picosecond Lasers Using Fractional Micro-Lens Array vs. Ablative Fractional 2940-nm Er:YAG Lasers for the Treatment of Atrophic Acne Scar in Asians: A 20-Week Prospective, Randomized, Split-Face, Controlled Trial

research Comparison of 1064-nm Nd:YAG Picosecond Lasers Using Fractional Micro-Lens Array vs. Ablative Fractional 2940-nm Er:YAG Lasers for the Treatment of Atrophic Acne Scar in Asians: A 20-Week Prospective, Randomized, Split-Face, Controlled Trial

April 2023 in “Journal of Investigative Dermatology”

Both laser treatments improved acne scars similarly, but the Nd:YAG laser was safer and less painful, while the Er:YAG laser left patients slightly more satisfied.

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