Really very little compared to otherc1970's ( and current). 4 or so, scenes with a female breast, and more of male rear-end

There's one brief sex scene near the start of the film and a lesbian sex scene about half way in, breast nudity is all that is shown in both.

There's rape scenes too which will be covered in the violence section:

Although fair amount of violence, it's from Japan in the 70's, blood is laughably fake, and none of the stabbing type shots actually show the piercing

After the brief sex scene at the start there's a rape scene shortly afterwards, they tear her clothes off and pin her to the ground, the camera just focuses on her face and her reaction to it.

Other scenes of violent sexual humiliation are spread throughout the film, either by the male police officers or by the female inmates to each other.

There are moments of strong bloody violence too, a man is stabbed multiple times in a very long scene, a woman stabs a male police officer in the eye, several inmates are violently shot and form pools of blood.

Fuck(ing), bitch and shit are said infrequently

Some of the police officers smoke

The film opens with an attempted escape and the main character beats a dog that is chasing her to death with a stick, the dog can be seen twitching in the bushes which may upset viewers.

The rape scene and a scene at the end of the film where the main character is taken by the inmates, she is striped, strung up and they beat her

The scenes throughout the film of violent sexual beatings may also be too much for some viewers