Hair loss dreams are extremely common and cause disproportionate anxiety on waking, largely because people assume they're literal or vanity-driven. In dream logic, hair is more closely tied to a sense of control, vitality, and identity than appearance.
Hair falling out in clumps
This most common version tends to appear during periods when you feel like you're losing control over something incrementally — a situation deteriorating in a way you can see happening but can't stop, piece by piece.
Discovering bald patches
A more sudden version of the same theme — often reflects a recent, specific realisation that something you assumed was stable (health, a relationship, a role) is more precarious than you thought.
Cutting your own hair short
Unlike involuntary loss, deliberately cutting your hair in a dream is usually a positive signal — a conscious decision to change, shed something, or reinvent an aspect of your identity.