As part of the initial evaluation, your health professional
may:

• Review your risk factors for an erection
  problem. For more generic viagra soft tab
  , see the What Increases Your Risk section of this
  topic.
• Ask
  questions about your sexual function.
• Do a
  complete physical examination of the abdomen, penis, prostate, rectum, and
  testicles.
• Do laboratory tests for:
  • Testosterone.
    A low testosterone level may reduce sexual desire, leading to an erection
    problem.
  • Prolactin. A
    high level of prolactin (hyperprolactinemia) may indicate a small tumor in the
    brain, which can affect other hormone levels in the body. When hormone levels
    are affected, an erection problem may result.
  • Thyroid hormone. Either a high or low level of thyroid
    hormone may cause problems with sexual desire or erections.
  • Blood glucose. Elevated blood sugar (glucose) levels
    may indicate the presence of
    diabetes, which can contribute to
    erection problems.

At this point, oral medications such as
Viagra, Levitra, or Cialis are often best generic viagra

unless an easily treated cause (such as a medication side effect or
testosterone deficiency) has been identified. If oral medications do not work
or your doctor feels more testing is necessary, he or she may recommend:

• Specific tests for erection problems, such as a
  nocturnal penile tumescence testing (rigidity test) and an cialis levitra sales viagra
  
  injection test. These both help determine whether physical or psychological
  factors are causing your erection problem.
• A psychological
  evaluation, if a psychological issue is suspected.

An
ultrasound may be done if your doctor suspects you
have a circulation problem (peripheral arterial disease). Even if
the blood vessels cannot be repaired, it may be helpful to know if you have
this condition because it may indicate you have a risk for other blood vessel
(vascular) problems. In very rare instances, you may have angiography-an X-ray
test of blood flow through an artery. Its usefulness is limited because
treatment to repair the blood vessels that supply blood to the penis is
appropriate for very few men.