I am a 21‑year‑old man who took tadalafil (10 mg) after two weeks of daily tadalafil (5 mg) and then took sildenafil (30 mg) twice the same night; now I have persistent semi‑erections that are firm but not fully rigid, glans discoloration and numbness, urinary hesitancy with difficulty starting a stream, and strain‑related erections—what urgent evaluation and management should I pursue to rule out priapism or vascular injury?

Urgent Vascular Evaluation Required – This is NOT Simple Post-Medication Trauma

You need immediate penile Doppler ultrasound and potentially MRI to rule out cavernosal thrombosis, arterial injury, or compartment syndrome—your persistent firmness, color changes, numbness progression, and urinary symptoms at 28 days post-event suggest ongoing vascular pathology that requires definitive imaging, not reassurance.

Why Your Urologists May Be Missing the Diagnosis

Your presentation does not fit classic ischemic priapism (which your urologists correctly identified), but it also doesn't fit simple "trauma healing." The 2022 AUA/SMSNA guidelines emphasize that partial erections should not be counted toward the 4-hour criteria for ischemic priapism 1, which explains why your ER and urologists dismissed acute priapism. However, the guidelines don't adequately address your specific scenario: persistent abnormal penile hemodynamics 28 days after PDE5 inhibitor overdose.

Critical Red Flags Being Overlooked:

• Persistent shaft firmness at baseline (even when "soft") for 28 days
• Progressive numbness and discoloration (purple/dark coloration)
• Abnormal erectile patterns (firm but small, or thick with soft glans)
• Prominent bulging veins and heat during erection
• New urinary hesitancy and bowel-related erections
• Position-dependent tumescence that won't fully resolve

What This Actually Suggests

Most Likely Diagnoses:

1. Cavernosal venous thrombosis or partial thrombosis – Your "rubbery" shaft, persistent firmness, and dark coloration suggest venous outflow obstruction with chronic congestion 2

2. Non-ischemic (high-flow) priapism with arterio-cavernosal fistula – The position-dependent changes, lack of severe pain, and ability to achieve erections suggest arterial injury creating abnormal shunting 1

3. Compartment syndrome with fibrosis – Progressive numbness and color changes may indicate evolving smooth muscle damage despite not meeting classic ischemic criteria

Immediate Action Plan

Step 1: Demand Specific Imaging (Within 48-72 Hours)

Penile Doppler ultrasound with arterial and venous flow assessment:

• Measure peak systolic velocities in cavernosal arteries
• Assess for arterio-cavernosal fistula
• Evaluate venous drainage patterns
• Document any thrombosis

Consider pelvic MRI with contrast if Doppler is equivocal:

• Better visualization of deep pelvic vessels
• Can identify subtle arterial injuries
• Assess for cavernosal fibrosis or edema

The 2022 guidelines state that non-ischemic priapism is not an emergency 1, but your 28-day duration with progressive symptoms warrants urgent evaluation to prevent permanent damage.

Step 2: Blood Gas Analysis of Corpus Cavernosum

If you can induce a semi-erection, corporal blood gas analysis definitively differentiates:

• Ischemic: pO₂ <30 mmHg, pCO₂ >60 mmHg, pH <7.25
• Non-ischemic: pO₂ >90 mmHg, normal pCO₂ and pH 1

This should have been done initially but is still valuable now.

Step 3: Urologic Subspecialist Consultation

Seek a sexual medicine specialist or priapism expert, not general urology. Your case requires someone familiar with:

• Atypical priapism presentations
• Vascular interventions (embolization for high-flow priapism)
• Early penile prosthesis consideration if fibrosis is developing

Why the Urinary/Bowel Symptoms Matter

Your urinary hesitancy, difficulty initiating stream, and strain-related erections suggest:

1. Pelvic floor dysfunction from prolonged abnormal penile engorgement
2. Pudendal nerve involvement (explains numbness progression)
3. Possible pelvic venous congestion affecting bladder/rectal function

These are NOT typical of simple "healing trauma" and indicate systemic pelvic vascular or neurologic involvement.

Medication Context from Your History

You took:

• Tadalafil 5mg daily × 14 days (steady-state achieved)
• Tadalafil 10mg boost (total 15mg that day)
• Sildenafil 60mg total (30mg × 2 doses)

The FDA label warns that tadalafil remains active >48 hours 3, and combining with sildenafil creates synergistic PDE5 inhibition. While priapism from oral PDE5 inhibitors is rare 4, 5, your combination dosing and subsequent prolonged abnormal tumescence suggests you may have developed delayed vascular injury or thrombosis rather than classic drug-induced priapism.

What Should Have Happened Initially

Per 2022 AUA/SMSNA guidelines, men with prolonged erections that are not fully rigid are less likely to progress to acute ischemic priapism 1. However, your case needed:

1. Immediate Doppler ultrasound at 48-72 hours when firmness persisted
2. Corporal blood gas to definitively rule out ischemic vs. non-ischemic
3. Consideration of conservative management (ice, exercise, phenylephrine) if non-ischemic 1

The Sudafed from the ER was appropriate for potential non-ischemic priapism but insufficient without diagnostic confirmation.

Prognosis and Next Steps

If High-Flow (Non-Ischemic) Priapism:

• Selective arterial embolization is first-line if conservative management fails 1
• Good erectile function preservation if treated appropriately
• May require multiple embolization procedures 6

If Venous Thrombosis:

• May require anticoagulation (your urologists mentioned "blood clot")
• Prognosis depends on extent and duration
• Risk of permanent erectile dysfunction increases with delay

If Evolving Fibrosis:

• Early penile prosthesis may be indicated to prevent further shortening 7
• Waiting too long risks inability to place prosthesis due to corporal scarring

Critical Pitfalls to Avoid

1. Don't accept "wait and see" beyond 30 days – You're already at 28 days with worsening symptoms
2. Don't assume lack of severe pain means no serious pathology – Non-ischemic priapism and venous thrombosis can be painless
3. Don't ignore the neurologic symptoms – Progressive numbness suggests nerve compression or ischemia
4. Don't delay imaging – Every week increases risk of irreversible changes

Bottom Line

Return to a urologist (preferably a different one or a sexual medicine specialist) within 72 hours and explicitly request:

1. Penile Doppler ultrasound with arterial/venous flow assessment
2. Corporal blood gas analysis during semi-erection
3. Discussion of embolization vs. anticoagulation vs. early prosthesis based on findings

Your presentation is too atypical and prolonged to be dismissed as "healing trauma." The combination of persistent firmness, progressive numbness, color changes, and urinary symptoms demands definitive vascular imaging to guide treatment and prevent permanent erectile dysfunction.