A social media trend known as the “brown challenge” is spreading in Spain, drawing concern from authorities and public health groups after people reportedly smear or spread fecal matter in public spaces as part of an online stunt. Multiple reports describe the activity as gaining traction through online sharing and imitation.
Outlets vary in tone but describe a similar progression: the behavior moves from online “pranks” to real-world incidents that can affect sanitation and hygiene. Some coverage emphasizes the apparent call to action and the risk to others, while others focus on the broader reaction from communities and concern about the health implications of spreading contamination in shared areas.
While reporting differs in wording, the central theme is that the trend is presented as harmful and is being treated as a public issue rather than a harmless internet joke.
