A leaky faucet is a common plumbing issue that can be caused by a variety of factors. The most common cause of a leaky faucet is worn-out washers, seals, or gaskets. These components are designed to prevent water from leaking out of the faucet, but over time they can become worn and damaged, leading to water leakage. If you want to know more about what causes a leaky faucet, read now.