Toggle navigation the ultimate acrylic painting course. 1y Layperson/not verified as healthcare professional. Trauma can cause petechiae, even scratching your leg super hard. Scratching Petechiae From [SMF05O] Petechiae Scratching I noticed them on my arms when I'd scratch even a small itch, I'd end up w/ red lines that stayed for hours, sometimes days! Petechiae I literally get it on my arm if I sleep in a weird position. Petechiae are pinpoint-sized spots of bleeding under the skin or mucous membranes. The purple, red or brown dots are not raised or itchy, and they’re not a rash. Many different things can cause petechiae, and some are serious. If you or your child have petechiae that spread quickly, or if you have dots plus other symptoms, seek medical attention. See spots run? - skin scratching petechiae | Ask MetaFilter Many different things … noticed 2-3 weeks ago that my skin was itchy & after scratching petechiae appeared. It's very easy to get them from exercising. Damage to the skin, such as from blunt force (for example, a car accident), biting, or hitting can cause petechiae to form. Infection that causes the buildup of toxin in the blood or tissues (sepsis).A bleeding... Read More 5.9k views Reviewed >2 years ago Thank Dr. Kenny Chuu agrees 3 thanks Chemotherapy Drugs. Petechiae: Causes & Treatment - WebMD I get petechiae when I do handstands or lots of yoga or pushups. Petechiae: What Are They, Causes, Treatment & Prevention Bruising / petechiae from scratching? : ehlersdanlos - reddit It feels better and it's less likely to … Petechiae can have a variety of causes, such as a bleeding disorder or mechanical trauma. has preexisiting valve disease, has a clincal cause that may extend over months.