Hepatic sinusoidal syndrome is caused by damage to the endothelial cells of the hepatic sinusoids, resulting in obstruction of outflow from the sinusoids which in turn causes a range of symptoms including ascites, liver abscesses, upper gastrointestinal bleeding and other disorders. In patients with hepatic sinusoidal syndrome, vascular ultrasound reveals a thinning of the internal diameter of the veins and a slowing of hepatic venous blood flow. Patients with hepatic sinusoidal syndrome may develop hepatic fibrosis, and in severe cases, the lumen may be narrowed or even occluded, but the lining is smooth and the ducts are clear. There is no specific treatment and the prognosis is poor. In advanced cases, life can only be prolonged by liver transplantation. This disease is highly specialized, should be timely to the regular hospital hepatobiliary surgery, under the guidance of the doctor to determine the specific treatment plan, and actively cooperate with the treatment to avoid deterioration of the condition.