The doctor explained the postoperative precautions.
Tips
usage
术 here is short for 手术 (shǒushù, surgery). Pair with 术前 (shùqián, pre-op) and 术中 (shùzhōng, intra-op). Used attributively: 术后护理 (shùhòu hùlǐ, post-op care), 术后并发症 (shùhòu bìngfāzhèng, post-op complications).