Physical
From Memory Alpha, the free Star Trek reference.
A physical is a medical procedure that analyzes a person's health.
Physicals may be ordered at the discretion of the chief medical officer whenever necessary, including of the captain. Aside from ordered physicals starships also have regular physicals to monitor the regular health of the crew. In the 23rd century these physicals were done quarterly, but by the 24th century they were only performed annually. (TOS: "The Corbomite Maneuver"; TNG: "Allegiance")
According to Starfleet protocols, physicals are mandatory following away missions that last more than two weeks. (VOY: "Memorial")
Doctor Leonard McCoy conducted a quarterly physical on Captain James T. Kirk in 2266, just prior to the Enterprise's encounter with the Fesarius. (TOS: "The Corbomite Maneuver")
In 2267, aboard the Enterprise, Doctor McCoy had Nurse Chapel conduct a complete physical on Ensign Chekov. (TOS: "The Deadly Years")
During the 23rd century, doctors on Federation starships had the duty of performing quarterly physicals on each member of the crew. (TAS: "Yesteryear")
A perfect replica of Captain Jean-Luc Picard came in a month early for his physical in 2366. (TNG: "Allegiance")
Doctor Julian Bashir gave Miles O'Brien an extremely thorough physical when O'Brien was suspected of being a replicant. (DS9: "Whispers")
In 2373, Bashir conducted a complete physical of Benjamin Sisko under orders of Admiral Charles Whatley. (DS9: "Rapture")
