Claustrophobia

Claustrophobia is the fear of having no escape from tight or enclosed spaces. It often results in a panic attack.

Meredith Rodney McKay told Major Evan Lorne that he suffered from claustrophobia when they were trapped under the rubble on M2S-445.

Ronald Greer developed claustrophobia after his father repeatedly locked him in the closet when he was young.

Dale Volker was revealed to have claustrophobia when the Tick-like bug caused him to hallucinate himself trapped in a box.