Acute wounds can occur from traumatic abrasions, burns, lacerations, and superificial skin and soft tissue injuries. (Source 1 - Kane 2003)
Acute wounds tend to heal spontaneously without complications through the four phases of wound healing which are hemostasis, inflammation, proliferation, and maturation.

CHEN,I-CHEN陳奕臻(TAIWAN)
Female，infant
Date Of Birth 1/6/2015
Weight：Four kg
28 days After Birth Happen Navel Granuloma(Suppurative)
嬰兒肚臍肉芽腫
小兒外科醫師以硝酸銀治療，並貼上防水膠布。
當天下午分泌物很多，決定隔天回診。
30 days After Birth
因肉芽太大，醫生剪去其根部並再以硝酸銀將傷口燙合，並貼以人工皮，說明有分泌物可隨時更換。
肚臍周遭有撕下防水膠布的破皮數處因人工皮亦有黏性，傷口仍為潮濕狀態，周邊破皮處(紅色箭頭處)不易癒合。