welche symptome hattet ihr bei helicobacter forum — what are common causes?

The question about symptoms and causes of Helicobacter pylori infection cannot be answered from the provided context, which only covers DNA tests for other topics (MC1R, TPMT, SIRT1, IL6, MTHFR, CYP2D6, LEPR). In general medical knowledge: H. pylori can be asymptomatic or cause stomach pain, heartburn, nausea, bloating, and loss of appetite. Long-term infection increases the risk of peptic ulcers and gastric cancer. Common causes include fecal-oral transmission (e.g., contaminated water or close contact) and poor hygiene. Diagnosis is via breath test, stool test, or endoscopy. Since the provided sources contain no H. pylori data, this answer is based on general medical knowledge, not on the given context. For evidence-based advice, consult a physician.