Paraphimosis is the inability to pull forward a retracted foreskin over the glans penis.
Figure 1 – The three anatomical divisions of the penis[/caption]Figure 1 – The three anatomical divisions of the penis
It is most often caused due to the presence of a tight constricting band as part of the foreskin that prevents the retraction over the glans
As the paraphimosis remains, the glans becomes increasingly oedematous due to reduced venous return, leading to vascular engorgement of the distal penis and further oedema.
If untreated this may lead to penile ischaemia and worsening infection, including Fournier’s gangrene. Consequently, it is a urological emergency that requires urgent reduction.
Phimosis, indwelling urethral catheter (due to non-replaced foreskin), poor hygiene, and prior paraphimosis.
Typical presentation is with progressive pain and swelling in the glans or distal prepuce, following retraction of their foreskin, being unable to retract in back over their glans (Fig. 2).
Patients may have had repeated admissions if the underlying cause has not been addressed.
Figure 2 – Schematic demonstrating (A) normal prepuce (B) a paraphimosis[/caption]Figure 2 – Schematic demonstrating (A) normal prepuce (B) a paraphimosis
Any paraphimosis should be reduced as soon as possible, as delays in management can lead to worsening swelling and a reduced likelihood in successful reduction.
Prior to any reduction, ensure suitable analgesia; a penile block via local anaesthetic (without adrenaline) may be warranted in some cases.
Once reduced, ensure definitive management (such as consideration for circumcision) is arranged urgently as an outpatient.
Methods of Reduction
Various techniques to treat paraphimosis have been described:
- Manual pressure to the glans can aid to reduce oedema, squeezing gently but constantly, before applying force to the glans to reduce it into the prepuce (use of lubricant jelly as required).
- Application of dextrose-soaked gauze to act as an osmotic effect, drawing fluid out of the glans, reducing the oedema present, and allowing for glans reduction as above. Similar technique for reducing oedema can be performed with ice packs
- The “Dundee Technique” involves the use of needle punctures into the glans penis, squeezing the area to allow drainage of oedematous fluid, before attempting reduction of the glans, as discussed above
If manual reduction fails, then a dorsal slit (incision of the prepuce at the 12’o clock position) or an emergency circumcision may be required
- Paraphimosis is the inability to pull forward a retracted foreskin over the glans penis
- Left untreated, the glans becomes progressive oedematous and can lead to necrosis
- Cases should be reduced as soon as possible with suitable analgesia