夫人腑脏调和，则血气充实，风邪鬼魅，不能干之。若荣卫虚损，则精神衰弱，妖魅鬼
精，得入于脏，状如怀娠，故曰鬼胎也。
阳施阴化，精盛有余者，则成两胎。胎之在胞，以血气资养。若寒温节适，虚实调和，
气血强盛，则胎无伤夭；若冷热失宜，气血损弱，则胎翳燥不育。其两胎而一死者，是血遇
于寒，挟经养不调，故偏夭死也。候其胎上冷，是胎已死也。
胎之在胞，血气资养。若血气虚损，胞脏冷者，胎则翳燥，委伏不长。其状，儿在胎都
不转动，日月虽满，亦不能生，是其候也。而胎在内痿燥，其胎多死。
过年不产，由挟寒冷宿血在胞而有胎，则冷血相搏，令胎不长，产不以时。若其胎在胞
，日月虽多，其胎翳小，转动劳羸，是挟于病，必过时乃产。
堕胎损经脉，损经脉，故血不止也。泻血多者，便致烦闷，乃至死也。
此由宿有风冷，因堕胎，血冷相搏，气虚逆上者，则血结不出也。其血逆上抢心，则亦
烦闷，甚者致死。
此由堕胎初下，妇人力羸，不能更用气产胞，便遇冷，冷则血涩，故胞衣不出也。若胞
上掩心，烦闷，乃至于死也。
此由堕胎之时，血下过少，后余血不尽，将摄未复，而劳伤气力，触冒风冷，风冷搏于
血气，故令腹痛；劳损血气不复，则虚乏。而余血不尽，结搏于内，多变成血瘕，亦令月水
不通也。
When the zang-fu organs are harmonious, qi and blood are abundant, and wind pathogens or demonic influences cannot invade. If ying (nutritive) and wei (defensive) qi are deficient and damaged, spiritual energy weakens, allowing demonic essences to enter the zang organs. The condition resembles pregnancy, hence it is called "Ghost Fetus" (Guǐ Tāi).
Yang exerts its influence while yin transforms; when essence is abundant and surplus, twin fetuses may form. Within the uterus, the fetus is nourished by qi and blood. If cold and heat are regulated appropriately, and deficiency and excess are balanced, with strong and robust qi and blood, the fetus will not be injured or die prematurely. However, if there is improper regulation of cold and heat, leading to damage and weakness of qi and blood, the fetus will become dry and atrophic, unable to survive. In cases of twins where one dies, it is because the blood encounters cold, combined with irregular menstrual nourishment, causing one fetus to perish. A sign that the fetus has died is a sensation of cold above the abdomen.
Within the uterus, the fetus relies on qi and blood for nourishment. If qi and blood are deficient and damaged, and the uterus is cold, the fetus becomes dry and atrophic, stagnating without growing. Its presentation involves the fetus remaining completely immobile within the womb; even after the full term has passed, delivery does not occur. This is the characteristic sign. When the fetus inside becomes dry and atrophic, it mostly results in death.
Failure to deliver past the expected time occurs due to the presence of chronic cold blood in the uterus alongside the fetus. The cold blood clashes, hindering fetal growth and causing abnormal timing of delivery. If the fetus remains in the uterus for an extended period but appears small, dry, and weak with difficulty moving, it indicates the presence of pathological factors, necessitating a delayed delivery.
Abortion damages the meridians; once the meridians are damaged, bleeding persists. Excessive blood loss leads to restlessness and oppression, potentially resulting in death.
This arises from pre-existing wind-cold pathogens. Following abortion, cold blood clashes, and due to qi deficiency, rebellious qi ascends, causing blood coagulation and retention. If the retained blood rebels upward towards the heart, it causes restlessness and oppression; severe cases can lead to death.
This occurs immediately after abortion when the woman is physically weak and lacks the strength to expel the placenta using qi effort. Exposure to cold causes blood stasis, preventing the expulsion of the placenta. If the retained placenta presses against the heart, it causes restlessness and oppression, potentially leading to death.
This results from insufficient bleeding during abortion, leaving residual blood unexpelled. If recovery is incomplete and physical exertion is excessive, exposure to wind-cold causes these pathogens to clash with qi and blood, resulting in abdominal pain. Physical exhaustion prevents qi and blood from recovering, leading to deficiency and fatigue. Furthermore, residual blood clots internally, often transforming into Blood Masses (Xuě Jiǎ), which also obstructs menstruation.