Can Toilet Paper Ruin a Stool Sample? The Critical Impact of Contamination
                                
                                
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                                    5 min read                                
                            
                                According to laboratory guidelines, contaminated samples are often rejected for testing, leading to delays in diagnosis. This is why many wonder, "Can toilet paper ruin a stool sample?" The short answer is yes, as foreign materials can compromise analysis by introducing chemicals and masking microorganisms.