a minute red or purple spot on the surface of the skin as the result of tiny hemorrhages of blood vessels in the skin (as in typhoid fever)
例句
Has obvious curative effect of activate blood and disperses petechia,get rid of petechia and come into being fresh. 具有活血化瘀、去瘀生新的明显疗效。
Purpose: To report an unusual case of bilateral subconjunctival hemorrhage with diffuse petechia all over the face in a survivor who suffered from a strangulation attempt. 摘要目的：报告一个年轻男性遭受父亲扼掐颈部，导致窒息伤害后的眼部临床表现。
"Sha disease"was firstly recorded in Southern Song dynasty as a group of symptoms.The process of scraping skin to evoke sand-grain-like red petechia was commonly called"get sha". 沙病"记载首见于南宋,为一组症状,通过刮擦皮肤引起局部出现沙粟状的红色瘀点,俗称"得沙"。"
In the experimental group, one time successful puncture 699 times (95.10%), tumidity 75 times (10.20%), petechia times 33(4.49%).There were significant differences between two groups (P 干预组一次穿刺成功699例次，占95.;10%25，组织局部肿胀75例次，占10
"Sha disease" was firstly recorded in Southern Song dynasty as a group of symptoms.The process of scraping skin to evoke sand-grain-like red petechia was commonly called "get sha". “沙病”记载首见于南宋，为一组症状，通过刮擦皮肤引起局部出现沙粟状的红色瘀点，俗称“得沙”。
dark-reddish tongue or with petechia;rough or wiry and tight pulse. 胸痛，头痛日久，痛如针刺而定处，或呃逆日久不止，或内热烦闷，或心悸失眠，急燥易怒，入暮潮热，唇暗或两目暗黑，舌黯红或有瘀斑，脉涩或弦紧。
