“Should I cut my blue hair?” is most often a reference to the song “Blue Hair” by TV Girl , and it’s usually used online as a metaphor, not just about literally cutting dyed hair.

Core meaning

In most fan and forum discussions, “cut my blue hair” is interpreted as:

  • A symbol of change or growing up – blue hair represents a younger, more carefree, or rebellious phase, and cutting it off means maturing or leaving that phase behind.
  • A loss of uniqueness or identity – blue hair stands for individuality; cutting it can mean conforming to what others expect (family, partners, jobs, society).

So when someone posts “should I cut my blue hair?” they might be asking, in a deeper sense, “should I change who I am or leave this version of myself behind?”

Darker interpretations (important)

Some people also read the line as a metaphor for self‑harm , comparing “blue hair” to “blue veins,” with “cutting” used in a double meaning.

Because of that:

  • In some contexts, it can be a subtle way of talking about mental health struggles or self‑destructive urges.
  • In others, listeners strongly clarify that the overall song is more about growing up and moving on , with the self‑harm angle being one possible line‑level metaphor, not the entire story.

If you ever see someone use it in a way that sounds hopeless or scary, it is safer to treat it like a potential mental health signal and respond with care.

How people use it online now

On TikTok, Reddit, and other forums, people use “should I cut my blue hair” or “ever since she cut her blue hair off” in a few common ways:

  • Joking about change: Thinking about changing style, growing up, or getting a “corporate” look for work.
  • Talking about growing apart: Describing someone who changed so much that they feel like a different person now.
  • Expressing inner struggle: Hinting at depression, identity issues, or feeling forced to be someone they’re not.

So the phrase is part literal (hair) and part symbolic (identity, maturity, conformity, or pain), and the exact meaning depends on the tone and context of the post or conversation.

Note: If you or someone you know is using this phrase in a way that sounds like self‑harm or suicidal thoughts, reaching out to a trusted person or a local mental‑health helpline as soon as possible is very important.