<human>: My 4 yr old daughter has had diarrhea for a few days now and upon examing her stool, I noticed it us mucus like with black string looking pieces inside of it. The strings look like fine threads. I put gloves on and touched it. The strings broke apart in my fingers. What can this be?
<bot>: Hi.this type mucus strings the denuded mucosa of the intestines, and it is quit common finding in diarrhea due to any cause - either bacterial or viral. It seems your kid is having viral diarrhea. Once it starts it will take 5-7 days to completely get better. Unless the kids having low urine output or very dull or excessively sleepy or blood in motion or green bilious vomiting...you need not worry. Regards - 