Some viewers may find hospital scenes with surgery and blood distressing.
Most of the episodes can be very emotional and sad to alot of viewers.
Usually moderately bloody, but there are more frightening scenes eg towards the end of season 4 there is a jump scare: an artery pops and there is blood everywhere, it is show in two episodes
In season 6 there is a hospital shooting and a lot of people die and are physically wounded and traumatized.
In different episodes, themes of abuse, suicide, shooting/violence, miscarriage, loss of people in different facets of relationships, PTSD, other mental health issues, child death, and intimacy struggles are present
Some episodes revolve around domestic violence.
Some of the plot lines can be disturbing and sad for some viewers. There are some frightening and intense scenes and is not an overarching theme for the series. The deaths of major characters can be intense and emotional to watch