Hepatitis C: the quiet liver infection that is now curable
Last updated September 3, 2026.
Hepatitis C is a blood-borne virus that infects the liver, often silently for decades, and it has undergone one of medicine's great transformations: since the direct-acting antivirals arrived, it is curable in over 95% of cases with 8-12 weeks of tablets. The challenge is no longer the cure; it is finding the people who do not know they carry it, because most have no symptoms until the liver is already scarred.
What does it feel like?
Usually nothing: most people with hepatitis C have no symptoms for years or decades, which is why it is called silent. When symptoms exist they are vague: fatigue, brain fog, poor appetite, vague abdominal discomfort, and aches. About a quarter of people clear a new infection naturally; the rest develop chronic infection that slowly scars the liver, and the first symptoms of advanced disease (jaundice, abdominal swelling, easy bruising, confusion) come dangerously late. Any adult who has never been tested with even a remote risk history belongs in a testing conversation.
How does it spread?
Blood to blood: the routes are shared needles and injecting equipment (the dominant route, including a single experiment decades ago), blood transfusions and organ transplants before screening began (early 1990s in most countries), unsterile tattooing, piercing, or medical and dental work (historically, or abroad in some regions), needlestick injuries, shared snorting equipment (straws and notes), and less efficiently, sex and mother-to-baby. It does not spread through hugging, kissing, sharing food, or coughing.
How is it cured?
- The test: an antibody blood test (shows exposure), followed by an RNA test (shows active infection) if positive; home finger-prick test kits are available in many countries.
- The cure: direct-acting antiviral tablets (sofosbuvir combinations and others) once daily for 8-12 weeks, with cure rates above 95%, minimal side effects, and no injections.
- Liver assessment alongside: blood tests and often a fibrosis scan (elastography) to see whether scarring needs follow-up after cure.
- After cure: the virus is gone, but existing cirrhosis still needs ultrasound surveillance (the liver-cancer risk from established cirrhosis persists), and reinfection is possible, so the risk routes still matter.
- Tell-and-test the circle: current and past needle-sharing partners and household blood-contact people should be offered testing.
When is it an emergency?
Hepatitis C is planned care. The urgent versions belong to advanced liver disease: vomiting blood, black stools, abdominal swelling, new confusion or severe drowsiness, jaundice that is new or worsening, and severe bleeding or bruising, all of which are same-day. Also prompt: jaundice or feeling genuinely unwell during treatment (rare but report it), and any hepatitis B or HIV co-infection discovery, which changes the treatment plan and needs specialist care. Pymander's escalation routing is built and tested specifically for this class of decision; see the safety architecture working paper.
What a Pymander AI doctor consult looks like
Illustrative example, not a real member's messages.
Common questions
Is hepatitis C really curable now?
Yes, and it is one of the genuine medical revolutions: the direct-acting antivirals (introduced from 2013 onward) cure over 95% of people with 8-12 weeks of once-daily tablets, across essentially all virus genotypes, with side effects (headache, tiredness) that are mild for most. Compare the old interferon era: a year of injections, brutal side effects, and a coin-flip cure. The current challenge in hepatitis C is not the medicine; it is diagnosis, because most carriers feel fine and do not know, which is why screening programs target anyone with even a decades-old risk history, and why your pharmacy check did exactly its job.
I injected drugs decades ago, just a few times. Is that really enough?
Yes: hepatitis C is highly transmissible by shared injecting equipment, and a single shared needle decades ago is a recognized route; there is no minimum exposure below which the risk vanishes. Many people cured today were infected exactly this way: brief, distant, often half-remembered. The virus then persists silently for 20-30 years before liver damage declares itself, which is why guidelines say test anyone who has ever injected, even once, regardless of how long ago or how healthy they feel. The test-to-cure pathway holds no judgment about any of it: the route is history, the cure is now.
What does the treatment actually involve?
Anti-climactic in the best way: after confirmation (an RNA test proving active infection) and a liver assessment, you take one to three tablets once daily for 8 or 12 weeks (the duration depends on genotype and liver state), with blood tests partway and a final test 12 weeks after finishing to confirm the cure. Most people notice nothing beyond the routine: no injections, no time off work, side effects limited to mild headache or fatigue in a minority. The final test (the SVR12, sustained virologic response) is the official cure declaration. Adherence is the one thing you control: every tablet, every day, for the full course.
If I am cured, is my liver out of danger?
Mostly yes, with one important exception: cure stops the ongoing damage (the inflammation driving the scarring ends), and livers without cirrhosis recover to essentially normal risk, though the antibody test stays positive for life (a scar of the immune system, not active infection). The exception: anyone who already had cirrhosis or advanced scarring before cure keeps an elevated liver-cancer risk and stays in ultrasound surveillance (typically 6-monthly scans) even after the virus is gone, because the scarring's consequences outlive the infection. Cure also is not immunity: reinfection is possible if the exposure route continues, so the harm-reduction conversation is part of the aftercare.
Should the people around me be tested?
Selectively yes: hepatitis C spreads blood-to-blood, so the testing circle is anyone who shared injecting equipment with you (however long ago), children born to a mother with active hepatitis C, and anyone with blood-to-blood contact (shared razors or toothbrushes with blood on them, needlestick exposure). Sexual transmission is inefficient in long-term monogamous relationships (testing is still often offered for peace of mind), and ordinary household life (hugging, kissing, shared meals, bathrooms) carries no risk. If you are cured, there is nothing to transmit; the testing offer is for contacts from the active years.
Why did I have no symptoms for so long?
Because the liver is a silent workhorse: hepatitis C injures it gradually through chronic low-level inflammation, and the liver's enormous reserve means no symptoms appear until scarring is advanced, sometimes 20-30 years after infection. The vague symptoms some people do report (fatigue, brain fog, low mood, aching) are so non-specific they are rarely connected to the virus. This silence is the defining danger and the entire logic of screening: the disease is found by looking for it, not by feeling it, and every year of silent infection is a year of preventable scarring that the cure arrives too late to fully reverse.