A woman's hair crawling with lice was a horrifying ride for one bus passenger in Mexico, video can reveal.

Video filmed by an unidentified bus passenger shows the back of a woman's head filled with squirming insects, assumed to be head lice.

The stomach churning clip, which is believed to have been shot in Mexico, sees the camera focus on the woman's brown hair, that's tied back in a bun.

Bugs are seen slithering out of her hair.

The woman's hair looks like it is in a beehive that hasn't been washed in weeks.

She appears unaware that the back of her head is being filmed.

Can you see them? Video filmed by an unidentified bus passenger in Mexico shows the back of a woman's head filled with squirming insects, pictured, which are assumed to be head lice

The woman's hair looks like it is in a beehive that hasn't been washed in weeks, making it a prime location for the insects crawling that are seen crawling in and out of her thick brown hair, pictured

The bus passenger, who also hasn't been identified, moves the camera closer to the woman's head while on the bumpy ride.

More bugs can be seen in what is likely a severe hygiene problem.