Hepatitis C is a liver infection caused by the hepatitis C virus (HCV). It primarily affects the liver and can cause inflammation and gradual liver damage. Unlike some other viral infections, hepatitis C can remain in the body for many years without causing obvious symptoms. Because of this, a person may have hepatitis C without realizing they are infected.
Hepatitis C is mainly spread through contact with infected blood. Sharing needles or other equipment used to inject drugs is one of the most common routes of transmission. It can also spread through improperly sterilized medical or tattoo equipment, unsafe blood transfusions in places where donated blood is not adequately screened, and certain other forms of blood exposure.
The infection can be acute or chronic. Acute hepatitis C occurs during the first months after infection. Some people naturally clear the virus during this stage, while others develop chronic hepatitis C. Chronic infection can gradually damage the liver and may eventually lead to fibrosis, cirrhosis, liver failure, or liver cancer.
Many people with hepatitis C do not experience symptoms for years. When symptoms occur, they may include tiredness, nausea, loss of appetite, abdominal discomfort, dark urine, pale stools, joint pain, and yellowing of the skin or eyes known as jaundice.
Hepatitis C can usually be detected through blood testing. Initial testing generally looks for antibodies against HCV. If antibodies are detected, an HCV RNA test can determine whether the virus is currently present in the blood.
Modern antiviral medicines have transformed hepatitis C treatment. Direct-acting antiviral medicines can cure most people with chronic hepatitis C, often with a relatively short course of treatment.
There is currently no widely available vaccine that prevents hepatitis C. Prevention therefore focuses on avoiding contact with infected blood, using sterile medical and injection equipment, ensuring safe blood screening, and taking appropriate precautions during procedures involving needles or blood.
Because hepatitis C can cause significant liver damage without obvious symptoms, testing is particularly important for people who may have been exposed to the virus or have risk factors for infection.
Hepatitis C is caused by the hepatitis C virus (HCV). The virus primarily spreads through infected blood entering another person's bloodstream.
Sharing needles, syringes, or other equipment used to inject drugs is an important route of transmission.
Medical procedures performed with improperly sterilized equipment can also transmit HCV. Proper sterilization and infection-control practices greatly reduce this risk.
Unsafe tattooing, piercing, or cosmetic procedures can potentially spread hepatitis C if equipment is contaminated with infected blood and is not properly sterilized.
Blood transfusions and organ transplants can transmit HCV when donated blood or organs are not appropriately screened. In countries with modern blood-screening systems, this risk is now very low.
Accidental needlestick injuries can expose healthcare workers to infected blood.
Sharing personal items that may contain blood, such as razors or toothbrushes, can potentially transmit the virus, although this is less common.
Hepatitis C can sometimes be transmitted from an infected mother to her baby during pregnancy or childbirth.
Sexual transmission is possible but is generally less efficient than blood-to-blood transmission. The risk can increase in situations involving blood exposure.
Hepatitis C is not spread through ordinary casual contact. Hugging, shaking hands, sharing food, coughing, sneezing, or sitting near someone with hepatitis C does not normally transmit the virus.
A person cannot determine whether someone has hepatitis C simply by looking at them because many infected individuals have no visible symptoms.
Some people have an increased risk because of previous exposure to infected blood, medical procedures in settings with inadequate infection control, injection drug use, or other blood-contact situations.
Having a risk factor does not mean a person definitely has hepatitis C. Testing is required to determine whether infection is present.
There is currently no vaccine for hepatitis C, so prevention focuses mainly on avoiding exposure to infected blood.
Never share needles, syringes, or other injection equipment. Using sterile equipment is an important way to reduce the risk of blood-borne infections.
Healthcare facilities should follow strict infection-control procedures and use properly sterilized or single-use medical equipment.
People receiving tattoos, piercings, or cosmetic procedures should choose reputable providers that use sterile, properly handled equipment.
Blood and donated organs should be screened according to appropriate medical standards before use.
Healthcare workers should follow needlestick and blood-exposure safety procedures and report accidental exposure promptly.
Do not share razors, toothbrushes, nail clippers, or other personal items that may become contaminated with blood.
Cover cuts and open wounds appropriately to prevent contact with another person's blood.
Sexual transmission is less common than blood-borne transmission, but people with higher-risk sexual exposure should discuss appropriate prevention measures with a healthcare professional.
Pregnant women with hepatitis C should inform their healthcare provider so appropriate monitoring and care can be arranged.
Routine testing is an important part of hepatitis C prevention because people who do not know they are infected may unknowingly transmit the virus.
People with previous exposure to infected blood should consider hepatitis C testing even if they feel healthy.
Avoiding unnecessary sharing of needles and ensuring safe medical and cosmetic procedures can significantly reduce the risk of infection.
People who have been successfully treated should continue avoiding exposure because hepatitis C can occur again after a cure.
Maintaining a healthy lifestyle can also support liver health. A balanced diet, regular physical activity, maintaining a healthy weight, and avoiding substances that can damage the liver can be beneficial.
Anyone diagnosed with hepatitis C should follow their healthcare provider's recommendations for liver monitoring and treatment.
Hepatitis C is a serious but highly treatable viral infection. Because it can remain silent for years, testing is often the only way to know whether a person has been infected. Early diagnosis allows treatment before significant liver damage develops.
With modern antiviral medicines, most people with hepatitis C can achieve a cure. Prevention of blood exposure, appropriate testing, timely treatment, and long-term liver care are the key steps toward reducing complications associated with hepatitis C.
Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider. In an emergency, call emergency services immediately.