Yes. Urine is comprised of waste products, including salts your body does not need.
One material that leaves the body in urine is protein.
The urethra
Urine travels through the urethra to leave the body. The urethra connects the bladder to the exterior of the body.
it leaves your body through the urethra
it exits with urine
they leave through sweat
Mostly by urine and feces.
Salts are released from the body in water solution, by transpiration.
Urine leaves the body through the urethra. The urethra connects the bladder to the outside of the body.
Urine contains waste products and excess substances that the body needs to eliminate, such as water, salts, and urea. These components are filtered from the blood by the kidneys and passed out of the body through the urinary system as urine.
urethra