In 2015, there were 180 dogs of the breed American Bully registered in the Jordbruksverket's register. By 2024, that figure has exceeded 6,000.
The dogs are known for being strong and muscular. It is also this appearance that is believed to be behind their popularity, according to Johnny Kroneld, who is the communications officer at the dog protection association Hundstallet.
He believes that many are attracted to the breed because it can inspire "respect from the general public".
It's a tough appearance. A powerful appearance, he says.
"100% increase"
The association is active in several locations in the country and works to rehome dogs that can no longer stay with their owners.
They have noticed that as the breed's popularity increases, so does the number of dogs of the breed that need to be rehomed.
Primarily, it is the XL variant of the American Bully, which has been banned abroad, that is being handed in.
It's almost as if you could say that there has been a 100% increase up until today if you go back three years in time.
The dogs can be handed in by the police or the county administrative board, but also by private individuals. The common thread in all cases is that there is a previous owner who has not been able to take care of the dog, according to Johnny Kroneld.
It can be everything from criminals to people who have acquired dogs for very wrong reasons.
According to the association, it is more difficult to rehome an American Bully than other breeds.
Johnny Kroneld believes that the breed requires an owner who has experience and knowledge. One of the dogs waiting for rehoming is the two-year-old dog Boss.
There is a lot of strength, self-confidence, and energy in these dogs. But the majority of the dogs we have rehomed are incredibly family-friendly too.
Ban debated
In the UK and Ireland, the number of serious dog attacks on humans has led to the bans on American Bully XL.
The UK's then-Prime Minister Rishi Sunak described the dog as a danger to the general public.
The question of regulation has also been raised in Sweden. Last year, Member of Parliament Fredrik Kärrholm (M) submitted a motion for a ban on fighting dogs.
A motion he still stands behind.
This type of dog is potentially very dangerous, and there is also a tendency for people to acquire them for just that reason, says Fredrik Kärrholm.
But a ban is a "short-sighted solution", according to Johnny Kroneld, who instead wants to see regulated breeding and increased authority resources.