Stay Sick! is the fourth studio album (and ninth album overall) by the American garage punk band the Cramps. It was released on February 12, 1990 by Enigma Records. Recorded at Music Finder in Hollywood, California, the album was self-produced by Cramps guitarist Poison Ivy and engineered by Steve McMillan. It was the last studio album to feature founding drummer Nick Knox.
"Bikini Girls with Machine Guns" was the band's only UK Top 40 single, reaching No. 35 in 1989.
The Cramps reissued the album on their own Vengeance Records in 2001. This edition contained four bonus tracks: "Bikini Girls with Machine Guns (Live)", "Beat Out My Love," "Jailhouse Rock" and "Jackyard Backoff".