* The pick is visibly thin or has deep grooves.
* The pick is noticeably rough or has a fuzzy texture.
* The pick is no longer able to produce a clear, consistent tone.
* The pick is difficult to control and feels “slippery” when playing.
* The pick produces a dull or muffled sound when strumming.
* The pick is no longer able to hold its shape and bends or warps easily.
When in doubt, it's best to replace your guitar pick with a new one. A worn out pick can affect your playing and hinder your progress, so it's important to keep them in good condition.