Doppler ultrasound may not be widely available. To learn more, see the topic Doppler Ultrasound.
Occasional erection problems are normal. If you are usually able to have and maintain a full erection, tests are usually not needed. Your erection problem may be from stress or anxiety or relationship problems.
Psychological tests may be recommended if no physical cause is found for your erection problem. You may want to see a counselor who specializes in sexual problems.
An angiogram may be recommended if initial tests can't find a cause for your erection problems. An angiogram is an X-ray test that takes pictures of the blood flow in an artery. To learn more, see the topic Angiogram. Experts are not sure how useful the angiogram test is because treatment to repair the blood vessels of the penis will be a choice for only a few men with this specific problem.
Dorsal nerve conduction test, evoked potential studies, and penile biothesiometry are extensive neurologic tests to check the nerve supply to the penis. These nervous system tests are not generally done or are not widely available.
Other Places To Get Help
National Kidney and Urologic Diseases Information Clearinghouse (U.S.)