痔疮的临床表现是什么
痔疮的临床表现主要有便血、脱出、疼痛、瘙痒和分泌物增多等。一、便血便血是痔疮最常见的症状之一,通常表现为排便时粪便表面附着鲜红色血液,或便后厕纸上有血迹,严重时可能出现滴血或喷射状出血。这种情况多因排便时腹压增高,导致痔核表面黏膜破损或血管破裂引起。血液不与粪便混合,出血量较少,但反复出血可能导致贫血,出现头晕、乏力等症状。二、脱出脱出指痔核从肛门内滑出,早...
2025-12-24 19:08:30
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