Trapping might lead to stress, pain, or even in some cases death for the animal, depending on the type of trap. Traps that work by catching limbs can occasionally cause injuries on the limbs, especially if used improperly, and the animal is left unattended until the trapper comes by, and might die e.g. from the injury, starvation, or attacks from other animals. Many states employ the regulation that a trap must be checked at least every 36 hours to minimize risks to the animals.