(来学网)男孩,7岁。便血10天。大便时见粪便表面附有鲜血,有时在大便后有鲜血滴出,无腹痛,大便次数正常,粪便形状正常。该患儿首先考虑的诊断是
  • A.
    (来学网)肛裂
  • B.
    (来学网)内痔
  • C.
    (来学网)直肠脱垂
  • D.
    (来学网)肛窦炎
  • E.
    (来学网)直肠息肉