• 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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Asthma

Asthma Symptoms in Adults: Early Signs, Triggers, and When to Seek Care

Asthma is often perceived as a childhood condition, but a significant number of cases develop or persist into adulthood. In India, adult asthma is increasingly recognised due to rising air pollution, occupational exposure and lifestyle-related risk factors. Unfortunately, asthma symptoms in adults are frequently misdiagnosed as recurrent infections, allergies or age-related breathlessness, leading to delayed treatment.

Understanding adult asthma symptoms is critical for early diagnosis, effective control and prevention of severe attacks.

 

What Is Asthma?

Asthma is a chronic inflammatory disease of the airways. In asthma, the airways become:

  • inflamed
     

  • narrow
     

  • overly sensitive to triggers
     

This leads to difficulty in breathing, especially during exposure to specific stimuli.

 

Why Adult Asthma Is Often Missed

Adult asthma symptoms may:

  • appear gradually
     

  • vary in severity
     

  • mimic common respiratory conditions
     

According to Indian Council of Medical Research and WHO data, many adults remain undiagnosed for years, increasing the risk of complications.

 

Common Asthma Symptoms in Adults

Wheezing

A high-pitched whistling sound while breathing, especially during exhalation, is a classic asthma sign.

 

Shortness of Breath

Adults with asthma often feel:

  • breathless during routine activities
     

  • difficulty taking deep breaths
     

This may worsen at night or early morning.

 

Chest Tightness

Many describe a sensation of pressure or tightness in the chest, which can be mistaken for heart-related issues.

 

Chronic Cough

A persistent cough, especially:

  • at night
     

  • early morning
     

  • after exercise
     

is a common but overlooked asthma symptom.

 

Symptoms That Worsen With Triggers

Asthma symptoms often intensify after exposure to specific triggers.

Air Pollution and Smoke

Urban pollution, vehicle emissions and indoor smoke significantly worsen asthma symptoms in adults.

 

Allergens

Dust mites, pollen, mould and pet dander are common triggers.

 

Respiratory Infections

Viral infections can trigger asthma flare-ups or reveal undiagnosed asthma.

 

Physical Activity

Exercise-induced asthma causes breathlessness and wheezing during or after physical exertion.

 

Weather Changes

Cold air, humidity and sudden temperature changes can aggravate symptoms.

 

Adult-Onset Asthma

Adult-onset asthma differs from childhood asthma.

Characteristics include:

  • onset after age 20–30
     

  • less association with childhood allergies
     

  • more persistent symptoms
     

  • higher likelihood of severe disease
     

Occupational exposure and hormonal changes contribute to adult-onset asthma.

 

Risk Factors for Asthma in Adults

Several factors increase asthma risk:

  • long-term exposure to pollution
     

  • smoking or passive smoking
     

  • occupational chemicals or dust
     

  • obesity
     

  • family history of asthma
     

  • chronic sinusitis or allergies
     

Women may experience asthma onset or worsening during hormonal changes.

 

When Asthma Symptoms Become Serious

Seek immediate medical attention if experiencing:

  • severe breathlessness
     

  • difficulty speaking in full sentences
     

  • bluish lips or fingertips
     

  • rapid worsening of symptoms
     

  • poor response to usual inhalers
     

These signs indicate a potentially life-threatening asthma attack.

 

How Adult Asthma Is Diagnosed

Diagnosis includes:

  • detailed symptom history
     

  • physical examination
     

  • lung function tests (spirometry)
     

  • response to bronchodilators
     

Early diagnosis improves long-term outcomes.

 

Impact of Untreated Asthma

Untreated asthma can lead to:

  • frequent attacks
     

  • reduced lung function
     

  • sleep disturbances
     

  • missed workdays
     

  • reduced quality of life
     

According to Lancet respiratory studies, uncontrolled asthma increases hospitalisation risk.

 

Managing Asthma Symptoms in Adults

Effective asthma management focuses on:

  • identifying and avoiding triggers
     

  • using prescribed inhalers correctly
     

  • monitoring symptoms regularly
     

  • maintaining follow-up care
     

Asthma action plans help patients recognise worsening symptoms early.

 

Role of Preventive Healthcare

Preventive healthcare helps:

  • detect asthma early
     

  • assess lung function
     

  • guide lifestyle modifications
     

Regular health checkups are especially important for individuals with respiratory symptoms or occupational exposure.

 

Lifestyle Measures That Support Asthma Control

Helpful practices include:

  • avoiding smoking
     

  • improving indoor air quality
     

  • wearing masks in polluted environments
     

  • maintaining healthy weight
     

  • regular, moderate exercise
     

Lifestyle support complements medical treatment.

 

Mental Health and Asthma

Stress and anxiety can worsen asthma symptoms.

Stress management:

  • reduces symptom frequency
     

  • improves medication response
     

Holistic care improves asthma outcomes.

 

Importance of Medication Adherence

Asthma medications work best when:

  • taken regularly as prescribed
     

  • inhaler technique is correct
     

Skipping treatment increases flare-up risk.

 

Long-Term Outlook for Adults With Asthma

With proper management:

  • symptoms are well controlled
     

  • severe attacks are preventable
     

  • normal activity levels are achievable
     

Most adults with asthma lead active, productive lives.

 

Conclusion

Asthma symptoms in adults are often subtle, variable and easily mistaken for common respiratory problems. Wheezing, breathlessness, chest tightness and chronic cough should not be ignored, especially when triggered by pollution, exercise or weather changes. Early diagnosis, trigger control and consistent treatment are essential to prevent severe attacks and preserve lung health. Recognising adult asthma early empowers individuals to manage symptoms effectively and maintain a good quality of life.

 

References

  • Indian Council of Medical Research (ICMR) – Respiratory Disease and Asthma Studies
  • World Health Organization (WHO) – Asthma Management and Prevention Guidelines
  • National Family Health Survey (NFHS-5) – Respiratory Health Indicators
  • Lancet Respiratory Medicine – Adult Asthma Outcomes and Management
  • NITI Aayog – Air Pollution and Respiratory Health Reports
  • Statista – Global Asthma Prevalence and Trends

See all

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