肛门痛：直肠下端的神经痛
习惯用语proctalgia fugax
痉挛性肛部痛：发作性的直肠剧痛，常在夜间使人痛醒；与肛提肌和尾骨肌痉挛有关- antiparallel
- antiparalytic
- antiparasitic
- antiparastata
- antiparastatitis
- antiparasympathomimetic
- antiparkinsonian
- antiparticle
- antipathic
- antipathogen
- antipathy
- antipedicular
- antipediculotic
- antipepsin
- antiperiodic
- antiperistalsis
- antiperistaltic
- antiperspirant
- antiphagocytic
- antiphlogistic
- antiphrynolysin
- antiphthiriac
- antiphthisic
- antiplasmin
- antiplasmodial