最後更新：2026年10月1日
胎兒過大無法通過產道，導致阻塞性難產。常見於小型母犬懷少數胎兒或單胎。需剖腹產。
Queens are induced ovulators; pseudopregnancy is less common than in dogs. Pyometra can occur after exogenous progesterone administration. Mammary hyperplasia (fibroadenomatous change) is common in young intact or progestin-treated queens and is self-limiting after OHE.
小型犬種、單胎妊娠高風險
建議：LRS 維持量 + 矯正脫水（pyometra/dystocia 常有脫水）
類型：LRS
監測頻率：每日（術後）
[1]Gestational Weight Gain as a Modifiable Risk Factor in Women with Extreme Pregestational BMI.
[2]Placental Lactogen as a Marker of Maternal Obesity, Diabetes, and Fetal Growth Abnormalities: Current Knowledge and Clinical Perspectives.
[3]Contributing factors of birth asphyxia in Thailand: a case-control study.
[4]Comparative effects of glibenclamide, metformin and insulin on fetal pancreatic histology and maternal blood glucose in pregnant streptozotocin-induced diabetic rats.
建議數日內就診評估，非立即危及生命但不宜拖延 (evaluation within days recommended, not immediately life-threatening)
及時剖腹產預後良好。延遲可能胎兒死亡、子宮破裂及母體死亡。
巨大胎兒 診斷流程
詳細問診包括發病經過、用藥史、飲食與環境
CBC、生化全套、尿液分析
來源：自動產生