Why is my washing machine vibrating excessively during the spin cycle?

Excessive vibration during the spin cycle of a washing machine can be caused by an unbalanced load, uneven flooring, or worn-out shock absorbers. It is important to ensure that the load is evenly distributed in the drum and that the machine is placed on a level surface to reduce vibration. If the issue persists, it may be necessary to check and replace any damaged shock absorbers.