A Frederick, Maryland woman's Facebook post has gone viral after she said the fish she purchased from Costco had a worm in it.

Emily Randolph said she bought the cod from the wholesale store in Frederick on February 9, before the sell by date.

After filming the viral video on February 12, Randolph said her and her husband went back to Costco to get their money back.

"The girl behind the counter said, 'someone had just returned salmon with worms in it.' No apologies at all," Randolph wrote on Facebook. "She acted as if this happens all the time. I’m so grossed out."

Now, Randolph is encouraging everyone to check their groceries before leaving the store.

"Check your food people," Randolph said in the post.