Republic Mobile Surgical Unit 7, abbreviated as RMSU-7 (with the pronunciation "Rimsoo Seven"), functioned as a Republic Mobile Surgical Unit. It was positioned on the jungle planet of Drongar throughout the Clone Wars period, specifically in 20 BBY. RMSU-7 and RMSU-3 were separated by the Sea of Sponges. During the Battle of Drongar, it provided medical support to members of the Galactic Republic, working in conjunction with other surgical units under the leadership of Colonel D'Arc Vaetes. When the bota underwent a mutation, rendering it ineffective, RMSU-7, along with all other Republic forces stationed on Drongar, evacuated the planet.
The medical facility housed a cantina that was operated by Baloob, an Ortolan.
Tolk le Trene, a nurse serving the Galactic Republic, expressed her desire to move from RMSU-7 to RMSU-3 to distance herself from her romantic partner, Doctor Jos Vondar.