Can a girl have no breasts?

Atypical puberty (delayed or absent):

Some girls may experience delayed or absent puberty, which can result in them having little to no breast development. This can be caused by underlying medical conditions, such as hormonal imbalances or genetic disorders, and may require medical evaluation and treatment.

Gender dysphoria:

Transgender individuals who were assigned female at birth (AFAB) and identify as male or non-binary may choose to have their breasts removed through a procedure known as top surgery. This is done to align their physical appearance with their gender identity.

Physical variations:

While it is uncommon, some women may have naturally small breasts or may have breast asymmetry, where one breast is significantly smaller than the other. This can be due to variations in breast tissue development or hormonal factors.

It's important to note that the presence or size of breasts does not define a person's femininity, worth, or identity.