pathological changes

例句：

1. 1.The patient's condition worsened after the surgery.
   手术后，患者的病情恶化了。
2. 2. The pathological changes in the brain were causing him distress.
   大脑的病理变化使他感到痛苦。
3. 3.Pathological changes are often associated with diseases.
   病理变化通常与疾病有关。