Can cirrhosis be contagious?

Written by Si Li Li
Gastroenterology
Updated on March 31, 2025
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Diseases that cause cirrhosis include viral hepatitis, such as chronic hepatitis B, chronic hepatitis C, and others, as well as alcoholic liver disease or autoimmune liver disease, all of which can lead to cirrhosis. Only cirrhosis caused by viral hepatitis can be contagious, and it only transmits hepatitis B or C virus, not cirrhosis directly. After a patient is infected with hepatitis B or C virus, they may gradually develop chronic hepatitis B or C. Over a long period of time, the virus damages the liver cells which can eventually lead to cirrhosis. Thus, cirrhosis itself is not contagious; only the virus can be transmitted.

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Written by Wu Hai Wu
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Does portal vein widen in the early stages of cirrhosis?

Patients with early-stage cirrhosis may also experience an enlargement of the portal vein. At this time, patients will need to complete related auxiliary examinations, such as electronic gastroscopy and abdominal color ultrasound, to rule out other complications caused by cirrhosis, such as esophageal and gastric variceal bleeding, or ascites associated with cirrhosis. It is crucial for early-stage cirrhosis patients to identify the cause as soon as possible and undergo etiological treatment, which sometimes can be very effective. For alcohol-related cirrhosis, abstaining from alcohol is necessary. If the cause is viral, such as chronic hepatitis B, antiviral treatments like entecavir are required. (Please use medication under the guidance of a doctor.)

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Does cirrhosis cause hemoptysis?

Cirrhosis is a digestive system disease, commonly seen in hepatitis B cirrhosis, hepatitis C cirrhosis, or alcoholic cirrhosis. In the late stages of cirrhosis, many complications may occur, the most common being hepatic ascites, hepatic encephalopathy, and upper gastrointestinal bleeding. Upper gastrointestinal bleeding caused by cirrhosis entails vomiting blood rather than coughing up blood, which is generally seen in respiratory diseases such as bronchiectasis or tuberculosis, which are common causes of coughing up blood. Therefore, when there is a major episode of vomiting blood due to cirrhosis-induced upper gastrointestinal bleeding, it is urgent to go to the hospital for intravenous blood transfusion. If necessary, a gastroscopy should be performed, and during this procedure, a vascular ligation technique may be used for hemostasis in symptomatic treatment.

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Written by Zhang Jian Kang
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Symptoms of decompensated cirrhosis due to hepatitis B

Hepatitis B virus infection repeatedly leads to severe damage to the liver. If chronic hepatitis is not actively controlled, cirrhosis may occur. A symptom of decompensated cirrhosis mainly manifests as ascites, gastrointestinal bleeding, portal hypertension, and some people exhibit symptoms of hepatic encephalopathy. The presence of these complications indicates that the patient has reached the stage of decompensated cirrhosis. Patients in this stage often exhibit distinct jaundice, dark urine, abdominal distension after eating, and the presence of ascites with a positive shifting dullness. Additionally, some patients may experience vomiting blood, black stools, liver coma, and other related symptoms. Once these symptoms appear, it indicates that the prognosis for the patient is relatively poor.

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Does early-stage liver cirrhosis cause petechiae on the skin?

In the early stages of cirrhosis, it generally does not cause petechiae on the skin. However, if the disease progresses to a later stage, the decline in coagulation function and reduction in platelets may lead to skin manifestations such as petechiae and ecchymosis. Therefore, if a patient with cirrhosis experiences petechiae in the early stages, it is important to seek further consultation at a reputable hospital's department of gastroenterology and hepatology. When necessary, a consultation at the dermatology department may also be required to complete coagulation function tests and a routine blood examination to assess the patient's condition. If the patient's condition, including the symptoms mentioned above, is due to cirrhosis, further comprehensive evaluations are needed, including gastroscopy and imaging studies of the liver, to rule out the occurrence of liver complications.

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Why does cirrhosis cause increasing weight loss and what can be done about it?

The reason why patients with cirrhosis are becoming thinner might be due to the decreased protein synthesis function of the liver after cirrhosis, leading to progressively lesser protein in the body, which results in the patient becoming thinner. It could also be because cirrhosis leads to poor digestion and absorption in patients, thereby reducing their absorption capacity and causing them to lose weight. Under these circumstances, some medications can be used for treatment, such as the infusion of albumin to supplement plasma proteins in the body. It is also important to actively treat the underlying cause of cirrhosis. For example, in the case of alcoholic cirrhosis, active efforts to abstain from alcohol and rehabilitative treatment are necessary. If the cirrhosis is caused by chronic hepatitis B virus infection, antiviral treatment should be administered.