wie lange kann man eine stuhlprobe aufbewahren — what can you do yourself?

The provided knowledge context does not contain information on stool sample storage. In general, for reliable analysis (e.g., microbiome tests, fecal occult blood), the sample should be processed as fresh as possible. Without a preservative, it is stable at room temperature for only a few hours; with specific buffers (often included in test kits), stability can extend to 24–48 hours. What you can do yourself: Collect the sample according to the test kit instructions, use the provided tube with buffer, store it cool (do not freeze unless specified), and ship it promptly. For self-administered analyses (e.g., DIY microbiome tests), similar principles apply: process immediately or preserve per manufacturer guidelines. Without more specific context, the evidence is based on general practice and is considered weak.