There is actually very little evidence for this. It is likely that it is mostly dog poop.

EDIT: the comments in response are non-sequiturs. The map does not display mostly human poop. It is mostly dog poop. I know I know, you see people poop all the time. But that’s not what the map is.

I was there for 4 days in 2019 and I saw someone poop right in front of me. A number of other social issues were apparent as well.

I've literally seen someone defecating on the street in the TL. But that's the TL. Elsewhere, yes, it's probably dog.

Market south to Bryant, and 10th st north to the waterfront (i.e. SOMA) is a pretty prolific area, I frequently see the city deploying porta-potties to keep it under control due to the campsites that pop up. Also yeah Tenderloin, Lower Nob Hill, Design District, civic center, pretty much that whole "fertile" crescent. It's no surprise that the city gave twitter huge incentives to put their headquarters in between civic center and central soma.

I walk my kid to and from daycare in that area and see street pooping if not every week, three times a month. There's a reason why people move away from the city when they have kids. We are not far off from doing the same after almost seven otherwise very enjoyable years here.

I've "only" seen two discarded needles on the street the entire time I've been here though, one was outside of a major grocery store just before Thanksgiving.

The rest of the peninsula is pretty vanilla and mundane though. As are the parts of the city not an hour's walking distance from market street. It was very interesting visiting manhattan though, I'm not sure where everyone there goes, but their SOMA-style areas seemed overall cleaner than ours, which leads me to believe it's partly a city management issue.

Regardless of what the map is about, the statement "poop on the streets is very common in San Francisco" is both about human and dog poop. The frequency with which people encounter human poop on the sidewalk in SF is very, very abnormal, even if dog poop is more frequent. One of my best friends owns a house on a street which is not a bad part of town by any means (both sides of the street are lined with immaculately-kept victorians that zillow thinks are worth $3+ million) and he has to clean human poop off of his own sidewalk about once a month.

Oh yeah, the Bay Area is actually paradise.

- https://www.youtube.com/watch?v=5gT5NULvRSk

- https://www.youtube.com/watch?v=fUtyW4FRn78

- https://www.youtube.com/watch?v=hPuMceGWtOQ