Positive fluid wave tremor is a characteristic sign of a large amount of fluid in the abdominal cavity. The patient’s abdominal skin will show fluctuating sensation on percussion in a lying position, called positive fluid wave tremor, and is seen in patients with advanced cirrhosis. As a result of declining liver function or even secondary portal hypertension and gastrointestinal stasis, the patient may also have significant abdominal distension or even an umbilical hernia as the plasma colloid osmotic pressure decreases and a large amount of fluid leaks into the abdominal cavity. If necessary, local anesthesia can be chosen to drain the abdominal cavity by puncture. Controlled drainage can relieve the patient’s discomfort, but a large amount of drainage can also easily induce hepatic encephalopathy, and attention should be paid to the prevention of abdominal infection and nutritional support during treatment.
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