鎖肛痔 [锁－－]

Jyutping so2 gong1 zi6
Pinyin suǒ gāng zhì

Definitions (Wiktionary)
  1. noun, Chinese, traditional
    A disease characterised by haematochezia, worsening constipation (as if the anus is locked), and abnormal stools. Equivalent to colorectal cancer.