Hepatitis: Difference between revisions
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{{ | {{SI}} | ||
{{Infobox medical condition | |||
== | | name = Hepatitis | ||
Hepatitis is an inflammation of the [[liver]] tissue. It can be self-limiting or can progress to fibrosis (scarring), cirrhosis, or liver cancer. Hepatitis | | image = [[File:Alcoholic_hepatitis.jpg|250px]] | ||
| caption = Micrograph of alcoholic hepatitis showing ballooning degeneration, Mallory bodies, and neutrophils. Liver biopsy. H&E stain. | |||
==Types of Hepatitis== | | field = [[Gastroenterology]] | ||
| symptoms = [[Jaundice]], [[fatigue]], [[abdominal pain]], [[nausea]], [[vomiting]], [[anorexia (symptom)|loss of appetite]] | |||
| complications = [[Cirrhosis]], [[liver cancer]], [[liver failure]] | |||
| onset = Sudden or gradual | |||
| duration = Acute or chronic | |||
| causes = [[Viral hepatitis]], [[alcoholic hepatitis]], [[non-alcoholic steatohepatitis]] | |||
| risks = [[Alcohol consumption]], [[intravenous drug use]], [[unprotected sex]], [[obesity]] | |||
| diagnosis = [[Liver function tests]], [[serology]], [[liver biopsy]] | |||
| treatment = Depends on cause; may include [[antiviral drugs]], [[corticosteroids]], [[lifestyle changes]] | |||
| medication = [[Antivirals]], [[corticosteroids]] | |||
| prognosis = Varies; can be self-limiting or lead to chronic liver disease | |||
| frequency = Common | |||
}} | |||
'''Hepatitis''' is an inflammation of the [[liver]] tissue. It can be self-limiting or can progress to fibrosis (scarring), cirrhosis, or liver cancer. Hepatitis is most commonly caused by a viral infection, but there are other possible causes of hepatitis. These include autoimmune hepatitis and hepatitis that occurs as a secondary result of medications, drugs, toxins, and alcohol. | |||
== Types of Hepatitis == | |||
Hepatitis can be classified into several types based on its cause: | Hepatitis can be classified into several types based on its cause: | ||
=== Viral Hepatitis === | |||
===Viral Hepatitis=== | Viral hepatitis is the most common form and includes: | ||
Viral hepatitis is | * '''[[Hepatitis A]]''': Caused by the hepatitis A virus (HAV), it is usually spread by consuming food or water contaminated by feces from an infected person. | ||
* '''[[Hepatitis B]]''': Caused by the hepatitis B virus (HBV), it is spread by exposure to infectious body fluids, such as blood, vaginal secretions, or semen. | |||
* '''Hepatitis A''': | [[File:HBV.png|left|thumb|Structure of the Hepatitis B virus.]] | ||
* '''Hepatitis B''': | * '''[[Hepatitis C]]''': Caused by the hepatitis C virus (HCV), it is primarily spread through blood-to-blood contact associated with intravenous drug use, poorly sterilized medical equipment, and transfusions. | ||
* '''Hepatitis C''': | [[File:HCV_structure.png|left|thumb|Structure of the Hepatitis C virus.]] | ||
* '''Hepatitis D''': | * '''[[Hepatitis D]]''': Also known as "delta hepatitis," it is caused by the hepatitis D virus (HDV) and only occurs in those infected with hepatitis B. | ||
* '''Hepatitis E''': | * '''[[Hepatitis E]]''': Caused by the hepatitis E virus (HEV), it is typically spread via the fecal-oral route, often through contaminated water. | ||
=== Alcoholic Hepatitis === | |||
=== | Alcoholic hepatitis is inflammation of the liver caused by excessive alcohol consumption. It can lead to cirrhosis and liver failure. | ||
=== Autoimmune Hepatitis === | |||
Autoimmune hepatitis is a chronic disease in which the body's immune system attacks the liver, causing inflammation and liver damage. | |||
== Symptoms == | |||
The symptoms of hepatitis can vary depending on the type and severity of the disease. Common symptoms include: | |||
== | |||
The | |||
* [[Jaundice]] (yellowing of the skin and eyes) | * [[Jaundice]] (yellowing of the skin and eyes) | ||
* Fatigue | * Fatigue | ||
| Line 41: | Line 42: | ||
* Dark urine | * Dark urine | ||
* Pale stool | * Pale stool | ||
[[File:Jaundice_eye.jpg|left|thumb|Jaundice is a common symptom of hepatitis.]] | |||
==Diagnosis== | == Diagnosis == | ||
Diagnosis of hepatitis involves | Diagnosis of hepatitis involves a combination of blood tests, imaging studies, and sometimes liver biopsy. Blood tests can detect the presence of hepatitis viruses, liver enzymes, and antibodies. | ||
== Treatment == | |||
==Treatment== | |||
Treatment depends on the type of hepatitis: | Treatment depends on the type of hepatitis: | ||
* '''Hepatitis A''': Usually resolves on its own; supportive care is provided. | |||
* '''Hepatitis A | * '''Hepatitis B''': Antiviral medications may be used to treat chronic hepatitis B. | ||
* '''Hepatitis B | * '''Hepatitis C''': Direct-acting antiviral medications can cure most cases of hepatitis C. | ||
* ''' | * '''Alcoholic Hepatitis''': Abstinence from alcohol and supportive care are crucial. | ||
* '''Alcoholic Hepatitis''': Abstinence from alcohol and | * '''Autoimmune Hepatitis''': Immunosuppressive drugs are used to reduce liver inflammation. | ||
== Prevention == | |||
==Prevention== | Preventive measures include vaccination (for hepatitis A and B), safe sex practices, avoiding sharing needles, and ensuring safe blood transfusions. | ||
Preventive measures include | == Complications == | ||
Chronic hepatitis can lead to serious complications such as: | |||
* [[Cirrhosis]] | |||
* [[Liver cancer]] | |||
* Liver failure | |||
[[File:Stages_of_Liver_disease_NIDDK_NIH.gif|left|thumb|Stages of liver disease progression.]] | |||
== | == See also == | ||
[[ | |||
[[File: | |||
== | |||
* [[Liver disease]] | * [[Liver disease]] | ||
* [[Cirrhosis]] | * [[Cirrhosis]] | ||
* [[Liver cancer]] | * [[Liver cancer]] | ||
* [[Jaundice]] | * [[Jaundice]] | ||
[[Category:Hepatology]] | [[Category:Hepatology]] | ||
[[Category: | [[Category:Inflammations]] | ||
[[Category: | [[Category:Viral diseases]] | ||
Latest revision as of 04:10, 7 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's medical weight loss NYC, sleep center NYC
Philadelphia medical weight loss and Philadelphia sleep clinics
| Hepatitis | |
|---|---|
| |
| Synonyms | N/A |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Jaundice, fatigue, abdominal pain, nausea, vomiting, loss of appetite |
| Complications | Cirrhosis, liver cancer, liver failure |
| Onset | Sudden or gradual |
| Duration | Acute or chronic |
| Types | N/A |
| Causes | Viral hepatitis, alcoholic hepatitis, non-alcoholic steatohepatitis |
| Risks | Alcohol consumption, intravenous drug use, unprotected sex, obesity |
| Diagnosis | Liver function tests, serology, liver biopsy |
| Differential diagnosis | N/A |
| Prevention | N/A |
| Treatment | Depends on cause; may include antiviral drugs, corticosteroids, lifestyle changes |
| Medication | Antivirals, corticosteroids |
| Prognosis | Varies; can be self-limiting or lead to chronic liver disease |
| Frequency | Common |
| Deaths | N/A |
Hepatitis is an inflammation of the liver tissue. It can be self-limiting or can progress to fibrosis (scarring), cirrhosis, or liver cancer. Hepatitis is most commonly caused by a viral infection, but there are other possible causes of hepatitis. These include autoimmune hepatitis and hepatitis that occurs as a secondary result of medications, drugs, toxins, and alcohol.
Types of Hepatitis[edit]
Hepatitis can be classified into several types based on its cause:
Viral Hepatitis[edit]
Viral hepatitis is the most common form and includes:
- Hepatitis A: Caused by the hepatitis A virus (HAV), it is usually spread by consuming food or water contaminated by feces from an infected person.
- Hepatitis B: Caused by the hepatitis B virus (HBV), it is spread by exposure to infectious body fluids, such as blood, vaginal secretions, or semen.
- Hepatitis C: Caused by the hepatitis C virus (HCV), it is primarily spread through blood-to-blood contact associated with intravenous drug use, poorly sterilized medical equipment, and transfusions.
- Hepatitis D: Also known as "delta hepatitis," it is caused by the hepatitis D virus (HDV) and only occurs in those infected with hepatitis B.
- Hepatitis E: Caused by the hepatitis E virus (HEV), it is typically spread via the fecal-oral route, often through contaminated water.
Alcoholic Hepatitis[edit]
Alcoholic hepatitis is inflammation of the liver caused by excessive alcohol consumption. It can lead to cirrhosis and liver failure.
Autoimmune Hepatitis[edit]
Autoimmune hepatitis is a chronic disease in which the body's immune system attacks the liver, causing inflammation and liver damage.
Symptoms[edit]
The symptoms of hepatitis can vary depending on the type and severity of the disease. Common symptoms include:
- Jaundice (yellowing of the skin and eyes)
- Fatigue
- Abdominal pain
- Loss of appetite
- Nausea and vomiting
- Dark urine
- Pale stool
Diagnosis[edit]
Diagnosis of hepatitis involves a combination of blood tests, imaging studies, and sometimes liver biopsy. Blood tests can detect the presence of hepatitis viruses, liver enzymes, and antibodies.
Treatment[edit]
Treatment depends on the type of hepatitis:
- Hepatitis A: Usually resolves on its own; supportive care is provided.
- Hepatitis B: Antiviral medications may be used to treat chronic hepatitis B.
- Hepatitis C: Direct-acting antiviral medications can cure most cases of hepatitis C.
- Alcoholic Hepatitis: Abstinence from alcohol and supportive care are crucial.
- Autoimmune Hepatitis: Immunosuppressive drugs are used to reduce liver inflammation.
Prevention[edit]
Preventive measures include vaccination (for hepatitis A and B), safe sex practices, avoiding sharing needles, and ensuring safe blood transfusions.
Complications[edit]
Chronic hepatitis can lead to serious complications such as:
- Cirrhosis
- Liver cancer
- Liver failure
