- 先露异常 xiānlùyìcháng malpresentation(medical) abnormal positioning of a fetus during childbirth; malpresentation
- 磁异常 cíyìcháng magnetic anomalymagnetic anomaly in geology or geophysics
- 重力异常 zhònglìyìcháng gravitational anomalygravitational anomaly, specifically in the context of geology
- 骨髓增生异常综合征 gǔsuǐzēngshēngyìchángzōnghézhēng myelodysplastic syndromea group of cancers in which immature blood cells in the bone marrow do not mature or become healthy blood cells; often abbreviated as MDS
