The answer to a clogged drain is that there are several common causes, including hair, soap scum, food particles, and other debris buildup. Symptoms can include slow draining, gurgling sounds, or even standing water in the sink or tub.
For minor clogs, homeowners can often fix the issue themselves using a plunger, drain snake, or chemical drain cleaner. However, for more stubborn or complex clogs, it's best to call a professional plumber. They have the right tools and expertise to safely and effectively clear the clog without causing further damage to the pipes.