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10 Dangerous Infections That Can Go Unnoticed for Years
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10 Dangerous Infections That Can Go Unnoticed for Years

Not all illnesses make themselves clearly known. Some infections can live in the body for years without causing any clear symptoms, while slowly and steadily damaging your health. These are known as latent (hidden) infections. It's impossible to list them all in one article, but here are the most common ones.

Dr. Anastasia
Article author

Dr. Anastasia

Infectious disease doctor

Hepatitis C

A liver disease caused by the hepatitis C virus.

How it spreads: Through blood (e.g. via non-sterile needles, manicure or tattoo tools, transfusions). Why it's dangerous: It can damage the liver for decades, leading to cirrhosis and other serious complications. Why it goes unnoticed: The disease has no specific symptoms; fatigue and weakness are often blamed on stress or lack of sleep.

Human Papillomavirus (HPV)

HPV is a group of DNA viruses transmitted from person to person and known for causing benign skin growths called papillomas.

How it spreads: Through sexual contact or close skin-to-skin contact. Why it's dangerous: Certain strains can lead to cervical, anal, throat, and genital cancers. Why it goes unnoticed: It shows no symptoms, especi...

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October 28, 2025
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10 Dangerous Infections That Can Go Unnoticed for Years - Ornament Community