Human: How can I tell if I have a clogged drain in my bathroom? Assistant: 
To determine if you have a clogged drain, start by checking for any visible signs of buildup such as water backing up or gurgling noises coming from the drain. If there are no visible signs, try using a plunger to dislodge any blockages. If that doesn't work, use a plumbing snake to remove obstructions and clear your drain.