The animal welfare charity is now investigating.
The RSPCA is appealing for information after a stray Staffie cross was found in a shocking state in Bolton.
The charity was called on Sunday 16 August when the dog was spotted by a member of the public with a large lump on her stomach which was dragging on the floor and bleeding.
She also had chronic eye issues and her nails had grown through her paw pads and out of the other side.
The older female dog was found wandering down the street by a member of the public at about 3pm, near to a field in West Meade where it is thought she could have been abandoned.
RSPCA inspector Kathryn Kellegher is now investigating.
She said: “This poor dog was in such a shocking state when she was picked up as a stray in West Meade in Bolton. Sadly, she had a lump on her stomach which was so large it had started to drag on the floor and she was bleeding all over the pavement. She also had such overgrown nails that they had curled and cut into her paw pads. It was distressing to see a dog in this poor state. I rushed her to the vets immediately but sadly, the vets had to put her to sleep to end her suffering.
“If anyone recognises this dog or has any information about where she may have come from, please contact the inspectorate appeal line in strictest confidence on 0300 123 8018.”
To help the RSPCA keep rescuing animals like these and keep our animal hospitals and centres running for emergency treatment and round the clock care through these unprecedented times, please donate whatever you can spare at www.rspca.org.uk/covid