A main character, starting in season 4 is always wearing a super tight catsuit

Mild sexual implications only.

Neelix's girlfriend, Kes is only a year and a half old in the beginning. She's an adult though as she's Ocampan with a 9 year total lifespan.

A Kazon woman is seen dancing provocatively in a night club wearing only a skimpy bikini. The scene starts with a closeup of her and the camera continues to linger for several minutes with her in the background.

A woman is "stripped" of her clothes against her will (through sci-fi means, no violent action involved). She doesn't seem to be in distress about the situation. No critical nudity shown.

Sexually provocative behavior from women in the episodes "Blood Fever", "False Profits" and "Tinker, Tenor, Doctor, Spy".

Ensign Kim has a few "short standing" relationships.

Two "supernatural" aliens in the shape of a man and a woman are shown procreating. It doesn't involve any physical sexual activity.

Frequent, mild to moderate sci-fi violence and action.

The story takes place on a military starship. The protagonists are military officers. They often enocunter hostility from various aliens and have to respond with force.

Two episodes feature an alien who erases whole habited planets from existence in a desperate attempt to restore a timeline in which his wife is alive. The destruction being done is shown a few times, but only through milder, stylized visual effects.

In one episode a few protagonists are shown carrying out cold blooded violent actions against innocent people, but it is only a holographic "recreation" of events that never took place in reality.

No harsh language. Occasional, infrequent use of the words "damn" and "hell" and the Klingonese phrase "p'tahk" (could be translated to English as "wuss").

Alcohol consumption shown from time to time.

Mild drunkness of a protagonist on a few occasions.

The theme of survival is a constant theme on this show. There is a dreary tone to even the happiest of episodes. Many episodes focus on trying to get home. There is a sadness to the characters in almost every episode.

The Borg may be particularly frightening for younger children. They are a cyb-org hive who "assimilate" people and other aliens, by stripping them of their free will with sci-fi means, turning them into drones. Some body parts are replaced with machinery. Their appearance is moderately scary. Lightning effect, background music and the actors' reaction on encountering the Borg extends the psychological effect. The Borg is depicted throughout the franchise as a "juggernaut", an unstoppable force partially resistant to all known sci-fi weapons.

The show features a large number of alien species, some of them (like Species 8472 or the Vidians) may be scary for younger children.

A few mentions of sci-fi weapons of mass destruction. A few mentions and threats of torture. A threat of extreme torture coming from a doctor in the episode "The Darkling".

Mild torture scene in one episode.

Moderate torture scene in an episode. Torture committed by a doctor.

The distance from Earth also involves frequent, moderate emotional intensity throughout the series.