High school might be in its rear view, but that does not mean “Glee” is done offering an education.

“Tested,” the episode set to air on April 15, will tackle the topic of sexually-transmitted diseases.

“When the boys get tested for STDs, Artie tests positive for a disease and he’s forced to tell his sexual partners,” reads the FOX synopsis for the episode.

And STDs are not the only health-related focus planned for the episode. The episode will also look at weight gain in the form of the infamous “freshman fifteen.”

“Meanwhile, Kurt and Blaine have relationship issues when Blaine puts on his ‘freshman fifteen,’” says the FOX synopsis.

In advance of the episode, FOX also shared high-resolution production photos. Click the thumbnails to access them:

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