Saw palmetto is a shrublike palm native to the southeastern United States. Historically, it was used for a variety of conditions, including disorders of the male and female reproductive organs and coughs due to various diseases.
Currently, saw palmetto is promoted as a dietary supplement for urinary symptoms associated with an enlarged prostate gland (also called benign prostatic hyperplasia or BPH), as well as for chronic pelvic pain, migraine, hair loss, and other conditions.
Many studies have evaluated various preparations of saw palmetto for urinary tract symptoms associated with prostate enlargement in men.
Much less is known about the use of saw palmetto for other health purposes.