Erectile dysfunction

The penis consists of 3 erectile bodies: the corpus spongiosum with the glans on the underside of the penis and the two erectile bodies on the upper side that are responsible for erection. Through a complex interplay of hormonal and nerve impulses, an erection occurs when the erectile bodies are intact. Functional and structural changes can lead to erectile dysfunction. Before any therapy, differentiated diagnostics are necessary in order to be able to offer specific treatment.

Questions about the diagnosis and treatment of erectile dysfunction

Erectile dysfunction is erectile weakness lasting at least 6 months that prevents satisfactory sexual intercourse in more than 70% of attempts.

No, erectile dysfunction does not normally occur, even though it is very common from a certain age. However, temporary erectile problems can certainly occur.

Of course, this varies greatly from person to person. Already between the ages of 40 and 50, almost one in ten men has problems with erections. The curve then rises steeply; between the ages of 60 and 70, roughly one in three men has difficulties.

As is often the case in medicine, a healthy lifestyle has a positive effect against the development of erectile problems. However, once these have occurred, you should seek urological care; home remedies are usually not very effective.

In addition to a detailed consultation and a physical examination, laboratory tests are carried out. In most cases, an "artificial" erection is induced with medication and an ultrasound examination is used to check whether the penis is receiving sufficient blood flow (angiodynography). Depending on the results, the causes of the erectile dysfunction can be determined.

That depends entirely on the cause of the condition, and the reasons can be many. In addition to hormonal and nerve changes, defects in the blood vessels in particular can cause problems. Systemic diseases such as diabetes or thyroid dysfunction as well as various medications and psychological problems can also be the cause. Finally, penile curvature (IPP) can also lead to erectile dysfunction.

In general, successful treatment of the underlying disease can lead to an improvement in erection. In this case, the erectile dysfunction is indeed curable. If, on the other hand, there are structural defects, only symptomatic therapies usually help.

The first step in the treatment of erectile dysfunction is drug treatment. If the medication does not work or stops working at a later stage, various other options can be considered. Shock wave therapy of the penis (ESWT) is painless and has a positive effect as a mild form of therapy. Self-injection of a drug into the erectile body that induces an "artificial" erection (SKAT) is also promising. Finally, surgical therapy can also be performed in which artificial erectile bodies (penile prostheses) are inserted.

Further information in the videos:

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Erectile dysfunction

Causes and treatment

This video presents the causes, diagnosis and treatment of erectile dysfunction in more detail.

  • Requirements for an erection: blood supply, intact nerves, hormone status (testosterone).
  • Causes of the disorder: circulatory disorders (common), nerve problems, hormone deficiency.
  • Diagnostics: blood tests, ultrasound of the erectile bodies, intracavernous injection test.
  • Therapy:
    • Medication (PDE5 inhibitors): only work with sexual arousal
    • Intracavernous injections: erection independent of arousal
    • Vacuum erection devices: mechanical, only when needed
    • Penile prostheses: inflatable or semi-rigid prostheses for severe dysfunction when other therapies fail

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Treating erectile dysfunction

A new treatment method

This video is about new options for treating erectile dysfunction.

  • Previous therapy: PDE5 inhibitors such as tadalafil, vardenafil, sildenafil in tablet form; only effective with sexual arousal.
  • New dosage form: sildenafil as a spray (trade name: Hezkue), prescription only.
  • Use: spray into the mouth 15–20 minutes before sexual intercourse; each spray contains 12.5 mg.
  • Advantages: rapid effect, easy to use, no tablets needed, practical for spontaneous sexuality.
  • Effect: strengthens and prolongs erections with sexual stimulation, but does not trigger an erection without arousal.

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Erection by injection

How SKAT therapy works

This video explains how intracavernous self-injection therapy (SKAT) works, how the injection set is prepared step by step and how the injection is administered correctly.

  • When is erectile dysfunction considered severe?
  • A special feature of SKAT therapy
  • Anatomical basics simply explained
  • Preparing the injection set
  • Step by step: how the injection works
  • Mechanism of action & duration of the artificial erection
  • Risks, safety & dosage
  • When you must see a urologist

VIDEO


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Vacuum penis pump for erectile dysfunction

Prof. Dr. Sven Lahme explains the advantages and disadvantages of a vacuum penis pump.

In this video:

  • Reliable erection: how to achieve stiffness without medication or surgery.
  • Avoiding surgery: why the pump can be an alternative to a penile prosthesis.
  • How a vacuum penis pump creates an erection
  • Component check: what parts a vacuum erection device consists of.
  • Step by step: the correct use of cylinder, pump and erection ring.
  • Why the vacuum penis pump works regardless of the cause of the erectile dysfunction.
  • An honest fact check: everything about the advantages and disadvantages and the issue of blue discolouration of the penis.

About this page:

Author

Prof. Dr. med. Sven Lahme
Urology specialist

Medical director of the Goldstadt-Privatklinik.
Specialist for Urology, Mini-PCNL and robot-assisted da Vinci procedures.

Member in Scientific Societies and Reviewer of scientific journals.

Creation Date: 08.03.2020Modification date: 27.08.2026

The YouTube channel of Goldstadt Privatklinik

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