The answer to 'why is my sink clogged' is that a clogged sink is typically caused by a buildup of debris, hair, grease, or other materials in the drain pipe. Common symptoms include slow draining water, gurgling sounds, or a completely blocked drain.
Some common causes of a clogged sink include pouring grease down the drain, flushing hair and soap scum down the drain, and letting debris like food particles accumulate in the drain over time. If the clog is severe, you may need to use a plunger, drain snake, or other tools to clear the blockage.