What Is Priapism (Prolonged Erection) and Why Is It an Emergency?
A painful erection lasting for hours independently of sexual stimulation is called priapism and needs assessment without delay. Its causes, its types and why it is a race against time are covered here.
Priapism is an erection that arises independently of sexual stimulation or desire and lasts longer than normal. It is usually accompanied by pain and does not subside with ejaculation or when stimulation ends. Because it is often seen as embarrassing, men frequently delay attending a healthcare facility; priapism, however, is among the situations in urology where time must not be lost.
This article covers what priapism is, why it is regarded as an emergency, its types, the causes behind it and how the process unfolds after presentation. The aim is to ensure that men experiencing it, or at risk of it, understand what delay means.
What is priapism?
In a normal erection, blood flow into the penis increases, the erectile tissue fills, and when stimulation ends the blood returns and the penis becomes flaccid. In priapism the final step of this cycle does not happen: blood becomes trapped in the erectile tissue and rigidity persists.
In this picture the shaft of the penis is typically rigid while the head (glans) remains soft. Pain becomes more pronounced as time passes. An erection persisting beyond a certain duration is no longer a sexual state but a medical problem in which the tissue is beginning to lose its oxygen supply.
Why is it an emergency?
The reason priapism is regarded as an emergency is straightforward: blood trapped in the erectile tissue gradually loses its oxygen. Tissue deprived of oxygen begins to suffer damage, just as it would anywhere else in the body when blood flow stops.
As time passes this damage can become permanent. In prolonged cases, permanent scarring (fibrosis) can develop in the erectile tissue, which may in turn lead to erectile dysfunction that does not respond to treatment. Where the scarring is advanced, penile implant surgery performed later can also become technically more difficult.
The message given to patients is therefore clear: in a painful erection that continues independently of sexual stimulation and lasts for hours, a healthcare facility should be attended without delay rather than waiting. With early presentation, treatment is often possible using simpler methods.
What are the types of priapism?
Priapism is not a single picture; the treatment approach differs markedly by type.
- Ischaemic (low-flow) priapism: The most common type and the urgent one. Blood becomes trapped in the erectile tissue, flow stops and the tissue is deprived of oxygen. The penis is rigid and there is marked pain. It is in this type that time is critical.
- Non-ischaemic (high-flow) priapism: Usually arises after trauma to the perineum or penis, through injury to an artery. Because blood flow continues, the tissue is not deprived of oxygen; there is usually no pain and rigidity is incomplete. It is not urgent to the same degree but still requires assessment.
- Recurrent (stuttering) priapism: Follows a course of short, repeated episodes; it is seen particularly in blood disorders such as sickle cell disease and requires preventive treatment.
This distinction is established through examination findings and investigations; determining the type correctly is the first step of the process because it changes the direction of treatment.
What causes priapism?
Priapism can have many different causes. The most common are:
- Injection therapy applied to the penis: A known risk of intracavernosal injection used for erectile dysfunction, explained in advance; this is the main reason the dose is determined by the physician.
- Blood disorders: Certain blood disorders, particularly sickle cell disease, are associated especially with recurrent priapism.
- Medications: Some antidepressants, antipsychotics, blood thinners and blood pressure drugs can rarely lead to this situation.
- Alcohol and substance use: Certain substances can increase the risk.
- Trauma: Blows to the perineum or penile area are the most common cause of the high-flow type.
- Other causes: Some neurological conditions, tumours and rare metabolic states may also be responsible.
In some patients no clear cause is found. Not finding a cause does not delay treatment; the priority is protecting the tissue.
When should medical help be sought?
A healthcare facility should be attended without delay in the following situations:
- An erection continuing without sexual stimulation or desire
- An erection lasting for hours that does not subside with ejaculation
- Increasing pain accompanying the erection
- An erection exceeding the duration stated by the physician after injection therapy
- Repeated short but frequent episodes of prolonged erection
Waiting at home, hoping that measures such as cold application will resolve it, or postponing presentation out of embarrassment all increase the risk of tissue damage. Healthcare teams treat this picture as a medical problem, so hesitancy should not delay attendance.
What happens after presentation?
Assessment begins with the history and examination. When the erection started, whether there is an underlying condition, current medications and any history of trauma are all asked about.
To determine the type, a blood sample taken from the erectile tissue is usually analysed and, where needed, Doppler ultrasound of the penile area is used. This shows the oxygenation of the blood and whether flow is continuing.
In ischaemic priapism treatment generally proceeds in stages: draining the blood from the erectile tissue, administering a vasoconstricting drug where needed, and surgical intervention in cases not resolved by these measures. The approach differs in the high-flow type, and urgent intervention may not be needed in every case; some patients are monitored while others undergo a procedure directed at the injured vessel.
Follow-up after treatment is important. Where an underlying blood disorder or a link to medication exists, addressing that separately is necessary to prevent recurrence.
What happens after priapism?
In cases presenting early the tissue is usually preserved and healing proceeds without difficulty. In prolonged cases, permanent changes can develop in the erectile tissue, which may result in erectile dysfunction that does not respond to treatment.
In these patients oral medication and injection therapy are often insufficient. Where advanced tissue scarring has developed, penile implant surgery is assessed; the operation is known to be technically more demanding in this situation and to require experience. In some cases planning implant surgery at an earlier stage allows intervention before the scarring progresses; this decision is made individually.
Priapism is not something to be embarrassed about but something not to delay. In a painful erection continuing independently of sexual stimulation and lasting for hours, early presentation allows treatment with simpler methods and helps prevent long-term tissue damage. Assoc. Prof. Dr. Zülfü Sertkaya practises in urology and andrology in Istanbul; assessment of the period after priapism and treatment planning are carried out with individual assessment and confidentiality.