What is the issue if the P-trap is clean, but the sink won't drain

Sink won't drain. Was this installed wrong? P trap is clean. : r/Plumbing

Kitchen sink not draining? Here are 6 ways to unclog it

Can two sinks share drain? - Quora

Can the problems in my sewer pipe affect my Kitchen sink? - Quora

How to Clean a Stinky Sink Drain - Home Repair Tutor

Fixing a gurgling sink drain by replacing the p-trap and cleaning the , plumbing

Does a P-trap have to be directly below a sink drain? - Quora

How to Unclog a Sink Drain, DIY Plumbing, and Why To Never Use Caustic Soda for Clogged Pipes

4 Simple Ways to Fix a Leaky Sink Drain Pipe - wikiHow

Can I replace my sink drain parts myself, or do I need to call a

Unclog Your Drain in 5 Easy Steps

What are some ways of fixing a leaking sink P-trap? - Quora