In (at least) one instance, quite early on, where Laura Ingalls is bathing in a barrel outside their house, her bare chest can be fully seen as she raises up to greet her father walking by.

Episodes during the series run contain shirtless male(s).

A baby boy is seen wearing only a cloth diaper while laying face down in his crib.

Men and some Children can be seen wearing long johns throughout the series.

There is some (very little) romantic flirting and kissing.

In one episode, the girls are swimming, bare shoulders is the only skin that is shown.

There are Numerous Fights through out the Series with Various Degrees.

In one episode threatens to whip his kids with a leather strap. Other instances of children being whipped and horribly abused.

Set in the American west, so there are occasions of guns being used in hunting situations and sometimes in defense.

A few gunshots where blood is shown on clothing.

Some situations of prejudice which involve a Native American getting shot.

An episode when a character gets a severely infected leg may be a little tough for some people.

An episode covers a plague of typhus. This contains some moderate gore.

One episode contains a sexual assault. nothing is actually shown, but the lead up is filmed like an 1980s horror movie. The assaulter is wearing a harlequin mask and is quite creepy. There are several stalking-like moments in this episode too.

There are some instances of racially-insensitive language, including (very rarely) the n-word.

The 'N' Word is Used Quit often through out the Series.

Nothing worse than "hell" and "damn" or its variations.

Occasionally, episodes contain people with drinking problems - namely whiskey.

Two episodes cover the issue of drug abuse; like addiction to morphine.

Charles smokes a pipe fairly regularly in early seasons.

Occasional (very rarely), rolled up cigarettes are smoked by minor characters.

There are many fights that happen some worse than others

There are scenes which focus on grave danger. These can be intense.