Scrotal Doppler and penile Doppler are two types of ultrasound imaging tests that
are used to evaluate blood flow in the male reproductive system to evaluate in male infertility.

Scrotal Doppler is a non-invasive ultrasound test that uses sound waves to evaluate the blood flow in the testicles and scrotum. It can help diagnose a variety of conditions, including varicoceles (enlarged veins in the scrotum), testicular torsion (twisting of the testicle that cuts off its blood supply), and epididymitis (inflammation of the epididymis, a tube behind the testicle that carries sperm).

Penile Doppler is also a non-invasive ultrasound test that uses sound waves to evaluate blood flow in the penis. It can help diagnose conditions that affect blood
flow to the penis, such as erectile dysfunction (ED). Penile Doppler can also be used to assess the blood flow in the penile arteries before and after certain treatments, such as penile injections for ED.

Both tests are typically performed in a hospital or clinic setting by a trained
technician. During the test, a gel is applied to the skin, and a handheld device called a transducer is passed over the area being evaluated. The transducer emits sound waves that bounce off the tissues and blood vessels, creating images that can be seen on a monitor.

Scrotal and penile Doppler are generally safe, non-invasive tests that do not require any preparation or recovery time. However, as with any medical procedure, there is a small risk of complications, such as infection or injury to the tissues. Your doctor can help you determine whether a scrotal or penile Doppler test is appropriate for your individual situation.