The soft bulge at the base of the cat’s hind legs may be an original bag or an umbilical hernia. If the bulge feels only a layer of skin and can shake, it may be an original bag; if the bulge feels hard or slowly changes, it may be an original bag. If it is large, it is best to take the cat to the pet hospital for examination to avoid delaying the condition.
Tip:
Original bags are common to most cats and can protect the cat’s internal organs and increase the speed of the cat’s movements.