Pregnant woman, employee, with 10 years history of rheumatoid arthritis and no family history of hepatitis. She has been taking prednisone 2-3#/day and Synthroid 1.5#/day for a long time and her condition is stable. She had 6 prenatal checkups during pregnancy and was adjusted to prednisone 3#/day and Synthroid 1#/day during pregnancy, with additional ASAI and Subcutaneous injections of Speedy. At 38+4 weeks of gestation, she underwent cesarean section + ovarian cyst debridement for low lying placenta, pregnancy combined with wind-like shutdown, hypercoagulable state and left ovarian cyst, and delivered a live baby girl weighing 2960 g with Apgar score of 10. The patient had a fever of about 38° with malaise, poor appetite, and milk distension one day after returning home. Later, due to fever and milk distension, she used 7 capsules of Baytril and paracetamol (acetaminophen) and used Chinese herbs (including 60g of smallpox powder) to restore milk for 3 days. Thereafter, the patient’s body temperature rose further to a maximum of T: 39°, accompanied by weakness, poor performance, headache, milk distension, without joint pain and other discomfort. A week later, he went to the emergency room because his symptoms did not ease, and checked the routine blood: WBC: 3.81*10^9/L, N: 76.1%, Hb: 131g/L, Plt: 197*10^9/L, CRP: 54mg/l, calcitoninogen: 0.175ng/ml, urine routine: normal, ALT: 436.7IU/L, lung CT: no significant abnormality, and gave Cefotiam anti-infection, ezetimibe for liver protection, dexamethasone 5mg drip symptomatic treatment, the patient’s body temperature still did not drop, self-conscious weakness increased, pale, unable to stand. The patient’s liver function was checked again, and glutathione transaminase 1666.0 IU/L and glutathione transaminase 2172.0 U/L. The patient’s liver function was considered to have deteriorated sharply. The patient then developed increased vomiting and atrophy. The chest CT showed bilateral pleural effusion with multiple exudates in both lungs, with the left side predominant. At this time, biochemical parameters were returned: blood ammonia 59.28umol/L H. Glutathione transaminase 5664.0IU/L H, glutathione transaminase 7458.0U/L H, creatinine 36.0umol/L L, urea nitrogen 1.40mmol/L L, fibrin degradation products 50.07ug/ml H, D -Considering the rapid development of the critical condition, the neurology, gastroenterology, hemodialysis, liver transplantation and anesthesiology departments were invited to participate in the resuscitation, and later the liver function was rechecked for glutamate transaminase 5430.0 IU/L H, glutamate transaminase 8512.0 U/L H, total bilirubin 21.30umol/L H, direct bilirubin 15.4umol/L H and serum bile acids 21.2umol/L H. Eventually, the patient went down the road of no return. What does this case teach you?