The answer to 'faucet overflowing' is that the most common causes are a clogged drain, a faulty faucet cartridge, or a problem with the faucet's internal components. Symptoms include water spilling out of the faucet instead of going down the drain, and the faucet continuing to run even when turned off. Solutions can range from a simple DIY drain cleaning to replacing worn-out faucet parts, depending on the specific issue.
If the overflow is due to a clogged drain, you may be able to clear it yourself using a plunger or drain snake. However, if the issue is with the faucet's internal components, it's generally best to call a professional plumber. Attempting to disassemble and repair the faucet yourself can be challenging and may lead to further damage if you're not experienced.