H. pylori spreads most often through direct contact with saliva or fecal matter from an infected person. This can happen when individuals share eating utensils, kiss, or do not practice proper hand hygiene after using the restroom.
Poor sanitation and crowded living conditions also increase the risk of infection. Contaminated food and water may serve as transmission sources, particularly in areas where access to clean water is limited.
Long-Term Risks and Complications
While many infected people never become ill, H. pylori infection can lead to significant complications when untreated:
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Gastritis: chronic inflammation of the stomach lining
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Peptic ulcers: open sores in the stomach or upper intestine
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Increased risk of stomach cancer: persistent infection has been linked to gastric cancer development in a small percentage of people over time
Because the bacteria can reside in the stomach for years, early diagnosis and treatment help reduce long-term complications.
How Is H. pylori Diagnosed and Treated?
If your doctor suspects H. pylori infection, they can use several tests:
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Breath test: checks for bacterial activity
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Stool antigen test: detects bacterial proteins
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Blood test: looks for antibodies (less commonly used)
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Endoscopy with biopsy: examines stomach tissues directly
Treatment usually involves a combination of antibiotics and acid-reducing medications to kill the bacteria and promote healing of the stomach lining. Complete eradication is essential to prevent recurrence and reduce cancer risk.
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