It takes about 1 to 2 days for a cat to expel a long rope after eating it. You can give the cat some medicine to promote defecation to help the cat expel the rope. However, if the cat does not expel the rope for more than two days, you need to take the cat to the pet hospital for examination. Next, confirm whether surgery is needed to remove the rope. Otherwise, if the rope remains in the cat's body for a long time and cannot be discharged, it may cause intestinal obstruction, which may even be life-threatening in severe cases.