What is an example of trauma that is "less damaging"? What are some causes of depression that seem insignificant?

I understand that my title may not be framed in the best possible way, so I'm sorry about that.

Whenever I hear about trauma and depression, I always hear the causes that are pretty serious or dramatic. From physical abuse, facing death to severe emotional neglect. But what are some causes of trauma or depression that are not as damaging or severe when compared to other, i.e, causes that are more mild that they less significant?

P.S: The question isn't meant to invalidate anyone's suffering. I'm just curious about what all kinds of experiences come under this.