• Published on: Sep 08, 2021
  • 4 minute read
  • By: Dr Rakesh Rai

What Is The Main Cause Of Hepatitis & What Happens If You Have Hepatitis?

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What is the main cause of hepatitis & What happens if you have hepatitis?

The virus is the most common cause, but auto-immune hepatitis can also occur when the body's immune system attacks and destroys its own kidney cells. Hepatitis is primarily caused by a virus, but there are many other possibilities. A viral infection is the primary cause of hepatitis. And various types of viruses can lead to hepatitis-- some fairly benign, some very serious—such as cytomegalovirus (CMV) and Epstein-Barr virus (EBV).

The main cause of hepatitis is the Hepatitis A virus (HAV). Hepatitis B virus (HBV) and Hepatitis C virus (HCV) can also cause acute hepatitis, but they are responsible for the majority of chronic cases. Chronic hepatic problems may result in the development of cirrhosis or liver cancer, which can be ultimately fatal. It's also possible for an individual to experience co-infection with HAV and HBB/HCV without knowing it since some people infected with HAV do not show any symptoms.

                                  

The human body typically gets rid of the virus in 1-3 months or so without needing any help from drugs or therapies, but about 15% to 40% of people infected with hepatitis A see their symptoms persist for 6 months to 3 years. This can be especially hard on people who are young and otherwise healthy because it often results in interruption of school or work life, not to mention the loss of self-esteem which can damage personal relationships.

Permanently resolving this requires active participation by both doctor and patient; unfortunately, many factors combine to reduce the likelihood that someone will recover completely naturally, including an existing chronic liver disease like cirrhosis (in which case

The main cause of hepatitis is bacteria, viruses, fungi, parasites and chemical substances that damage the liver. The secondary causes may be alcohol abuse or chronic fatty liver disease.

A damaged or diseased liver can lead to alcoholic cirrhosis and other diseases such as spontaneous bacterial peritonitis and encephalopathy.

Hepatitis refers broadly to any inflammatory disorder involving the liver, a diverse organ having many functions in the body. The immune system's response damages hepatocytes - cells that form bile ducts to remove toxins from the blood, produce clotting proteins for blood clots, store energy from food in glycogen so it can be used later when glucose supply from food runs low after starvation occurs.

Some viruses, but more often a drug or toxin that irritates the liver. Drugs and other toxins that can damage the liver include industrial solvents like ammonia, industrial chemicals like benzene, alcohol, acetaminophen (Tylenol), erythromycin (mostly taken to decrease antibiotic resistance), tetracycline antibiotic with surgery concurrent antibiotics), drugs for prevention of malaria such as chloroquine plus proguanil or mefloquine with surgery concurrent clindamycin plus primaquine) and ursodeoxycholic acid.

In adults, viral hepatitis is the most common cause of infectious chronic liver disease, and it's often spread by close contact. In children, foodborne outbreaks are more common. Your body's immune system is a major cause of hepatitis and can be activated by something like a viral infection.

The key to understanding liver disease comes when you realize that the immune system - via T cells and B cells; NK cells; macrophages and natural killer (NK) cells - create inflammation in your gut which ultimately drains into your liver. And when these "Do-or-Die" T lymphocytes or "natural killer" (NK) cell attacks occur it triggers scarring in various regions of your liver which leads to cirrhosis.

The main cause of hepatitis is viral, but it's important to note that there are two types of hepatic viruses that can cause this condition. The first is Hepatitis A (HAV), which comes from fecal matter and is usually spread by food or water contaminated with infected feces. The second type of virus, Hepatitis B (HBV) comes from blood contact, sexual intercourse, or childbirth; however, both types can be transmitted through blood transfusion or drug use (especially needles). According to the Centers for Disease Control and Prevention (CDC), HAV affects about 150 Americans each year; HBV affects roughly 2 million people annually.

The main cause of hepatitis is the virus. But there are other causes including bad hygiene, drinking contaminated water or using dirty injections needles. Furthermore, the hepatitis viruses may spread from an infected mother carrying the disease to her unborn child before it's even born! That can lead to two very different types of hepatitis - one that has a strong reaction where the pregnant woman develops significant liver damage and another that barely affects her at all. And then of course not surprisingly- people who already have chronic health conditions such as diabetes or cirrhosis (liver scarring) and those with weak immune systems due to age or chemotherapy for cancer patients with low white blood cell counts can be more prone to experiencing a chronic infection.

Hepatitis is an inflammation of the liver. It can be caused by either viruses or toxins, including alcohol and prescription medications. Symptoms may include fever, loss of appetite, nausea, vomiting pain in the right side below the ribs when taking deep breaths. The most common type in America is Hepatitis A which you get from sharing food or drinks that are contaminated with tiny amounts of stool from infected people; also known as "gastroenteritis." Getting vaccinated prevents the most acute form usually found in children

Hepatitis is an inflammation of the liver caused by viruses, alcohol, medication. With hepatitis A virus - the symptoms are nausea, vomiting, diarrhea, abdominal pain, and fever. The patient may also have jaundice or low levels of proteins within their blood. Hepatitis B virus - It's usually transmitted through contact with infected blood or other sharps objects such as needles. The symptoms can take up to 6 months before showing signs and it may include dark urine and light-colored stools, joint pain in the lower part of arms and legs (joints hurt worse when pressed) personality changes together with depression phase feelings such as irritability or sadness for no reason at all fatigue along with soreness. If the infection is acute then there may be nausea, vomiting, diarrhea, stomach pain, and jaundice. If chronic then fatigue, loss of appetite, and liver damage may occur.

We recommend immunization for Hepatitis A with the appropriate protection against Hepatitis B with appropriate protection against Hepatitis C with appropriate protection against Herpes Simplex Virus 2 (genital herpes).

Hepatitis is the inflammation of the liver. If you have acute hepatitis, there are often no symptoms associated with it; if you have chronic hepatitis, the most common symptom is fatigue. You can't get Hepatitis from drinking alcohol or eating too much greasy food (unless it's cooked in oil that hasn't been cleaned). You also don't get it by sharing personal items like towels or razors with an infected person.

A person with Hepatitis may feel tired, be pale and lose weight. They may not look sick but can carry the virus that damages their liver. The symptoms of HAV (hepatitis A) last only a few weeks to a couple of months, while symptoms from Hepatitis B can last six months or more; in both cases, there is no specific treatment.

Most people recover fully, and the liver will regain its former function without any need for transplantation or medical intervention in most cases but is often permanently damaged and scarred in others with chronic infections. Hepatitis C sometimes results in severe cirrhosis after decades of infection because it does not cause symptoms until late-stage disease when signs

Hepatitis is an unfortunate and contagious liver disease that we see in at least 500,000 people every year. Hepatitis can be caused by either a virus or a toxin/irritant such as alcohol. Symptoms include jaundice (yellow skin), dark urine, sudden fever that isn't relieved with antibiotics or acetaminophen, abdominal discomfort, and pain that doesn't feel like dysentery - which are hallmarks of the toxic type of hepatitis. Many times, you'll have elevated levels of bilirubin in the blood followed by the destruction of red blood cells due to obstruction of bile ducts if not treated early on.

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Tuberculosis

Tuberculosis Symptoms and Treatment: Early Signs, Diagnosis, and Recovery

Tuberculosis (TB) is one of the oldest known infectious diseases and continues to be a major public health concern, especially in developing countries. India accounts for a significant proportion of global TB cases, despite advances in diagnosis and treatment. The good news is that tuberculosis is preventable, treatable and curable when detected early and managed properly.

Understanding tuberculosis symptoms and treatment is critical for reducing disease spread, preventing complications and achieving complete recovery.

 

What Is Tuberculosis?

Tuberculosis is an infectious disease caused by Mycobacterium tuberculosis. It primarily affects the lungs (pulmonary TB) but can also involve other parts of the body such as:

  • lymph nodes
     

  • bones and joints
     

  • kidneys
     

  • brain
     

TB spreads through the air when an infected person coughs, sneezes or speaks.

 

Why Tuberculosis Remains a Major Health Issue

According to the World Health Organization and ICMR data:

  • millions of new TB cases are reported annually
     

  • delayed diagnosis increases transmission
     

  • incomplete treatment leads to drug resistance
     

Early detection and treatment are key to TB control.

 

Common Tuberculosis Symptoms

TB symptoms often develop gradually and may be mild in the early stages, leading to delayed diagnosis.

Persistent Cough

A cough lasting more than two to three weeks is a hallmark symptom of pulmonary TB.

The cough may:

  • be dry or productive
     

  • worsen over time
     

  • sometimes produce blood
     

 

Fever and Night Sweats

Low-grade fever, especially in the evenings, is common.

Night sweats that soak clothing or bedding are a classic TB sign.

 

Unexplained Weight Loss

TB increases metabolic demand and reduces appetite, leading to significant weight loss.

 

Fatigue and Weakness

Persistent tiredness and reduced stamina occur due to chronic infection.

 

Chest Pain

Chest discomfort or pain may occur during coughing or breathing.

 

Symptoms of Extra-Pulmonary TB

When TB affects organs outside the lungs, symptoms depend on the site involved and may include:

  • swollen lymph nodes
     

  • bone or joint pain
     

  • headaches or neurological symptoms
     

  • urinary issues
     

 

Why TB Symptoms Are Often Ignored

Many TB symptoms resemble common infections or general weakness.

This leads to:

  • delayed medical consultation
     

  • prolonged transmission
     

  • disease progression
     

Awareness improves early detection.

 

How Tuberculosis Is Diagnosed

Diagnosis involves a combination of:

  • sputum tests
     

  • chest X-ray
     

  • molecular tests such as CBNAAT
     

  • blood tests and imaging for extra-pulmonary TB
     

Early and accurate diagnosis is essential for effective treatment.

 

Tuberculosis Treatment Explained

TB treatment involves a combination of antibiotics taken over a fixed duration.

Standard TB Treatment

For drug-sensitive TB, treatment typically lasts:

  • 6 months
     

The regimen includes multiple antibiotics taken in phases to ensure complete bacterial clearance.

 

Importance of Treatment Adherence

TB bacteria are slow-growing and resilient.

Stopping treatment early can result in:

  • incomplete cure
     

  • relapse
     

  • drug-resistant TB
     

Completing the full course is essential.

 

Drug-Resistant TB

If TB bacteria become resistant to standard drugs, treatment becomes longer and more complex.

Drug-resistant TB requires:

  • specialised medications
     

  • longer treatment duration
     

  • close medical supervision
     

Prevention of resistance depends on correct treatment from the start.

 

Side Effects of TB Treatment

Some individuals may experience side effects such as:

  • nausea
     

  • loss of appetite
     

  • mild liver enzyme changes
     

Most side effects are manageable with medical guidance and do not require stopping treatment.

 

TB and Public Health

TB is not just an individual health issue but a community concern.

Effective TB control requires:

  • early diagnosis
     

  • treatment adherence
     

  • contact tracing
     

  • public awareness
     

India’s national TB elimination programmes focus on these strategies.

 

Preventing Tuberculosis

Preventive measures include:

  • early detection and treatment of active TB
     

  • improving nutrition and immunity
     

  • adequate ventilation in living spaces
     

  • screening close contacts
     

BCG vaccination offers partial protection, especially in children.

 

Living With and Recovering From TB

With proper treatment:

  • symptoms gradually improve
     

  • infection becomes non-contagious
     

  • normal life can be resumed
     

Regular follow-up ensures complete recovery.

 

When to Seek Medical Help

Consult a healthcare provider if experiencing:

  • cough lasting more than two weeks
     

  • unexplained weight loss
     

  • persistent fever or night sweats
     

  • blood in sputum
     

Early action saves lives and prevents spread.

 

Long-Term Outlook After TB Treatment

Most individuals who complete treatment:

  • recover fully
     

  • regain normal lung function
     

  • return to daily activities
     

Long-term complications are rare with timely care.

 

Conclusion

Tuberculosis symptoms and treatment must be understood clearly to combat this preventable and curable disease. Persistent cough, fever, night sweats and weight loss should never be ignored. Early diagnosis, complete treatment adherence and regular follow-up are essential for curing TB and preventing transmission. With proper medical care and public awareness, tuberculosis can be effectively controlled and eliminated as a public health threat.


 

References

  • Indian Council of Medical Research (ICMR) – Tuberculosis Epidemiology and Treatment Guidelines
  • World Health Organization (WHO) – Global Tuberculosis Report
  • National Tuberculosis Elimination Programme (NTEP) – Government of India
  • Lancet Infectious Diseases – TB Diagnosis and Treatment Outcomes
  • National Family Health Survey (NFHS-5) – Infectious Disease Indicators
  • Statista – Global Tuberculosis Burden and Trends

See all

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