What is a happy trail?

A "happy trail," also known as an Apollo's belt, is a light vertical line of hair that grows from the navel down towards the genitals. It's considered a secondary sexual characteristic, more commonly found in men but can also occur in women.

It's primarily influenced by hormones, specifically androgens like testosterone. The presence and thickness of a happy trail are largely determined by genetics and ethnicity. Some individuals are naturally predisposed to having a more prominent one than others.

The visibility and thickness of a happy trail can vary greatly. For some, it might be barely noticeable, while for others it can be quite thick and dark.

Culturally, the perception of a happy trail is subjective and varies across different societies and personal preferences. Some people find it attractive, while others may prefer its absence. There is no inherent right or wrong opinion.