What is the expected healing timeline and prognosis for a male who developed drug‑induced low‑flow priapism after daily tadalafil (5 mg) for two weeks, a 10 mg dose, and two 30 mg doses of sildenafil, now experiencing weeks‑long partial erections, penile discoloration, numbness, venous congestion, and inconsistent erections, and why are these discoloration and erection inconsistencies occurring?

Your Symptoms Are Consistent with Prolonged Venous Congestion and Corporal Trauma, Not Classic Ischemic Priapism—But You Need Urgent Re-Evaluation with Penile Doppler Ultrasound

Based on the evidence and your clinical presentation, you likely experienced a prolonged drug-induced partial erection that has resulted in persistent venous congestion, possible corporal smooth muscle injury, and vascular dysfunction—but your urologists are correct that this was not classic ischemic priapism requiring emergency intervention at 48 hours. However, your ongoing symptoms at 28 days—including persistent firmness, discoloration, numbness, and urinary/bowel dysfunction—warrant immediate advanced imaging and potentially more aggressive intervention than simple observation.

Why Your Urologists Are Partially Correct (But Missing Key Points)

The Guideline Perspective on Your Initial Presentation

The 2022 AUA/SMSNA guidelines clearly state that "men with prolonged erections that are not fully rigid are less likely to later progress to acute ischemic priapism compared to those with fully rigid erections. As such, partial erections should likely not be counted towards the four-hour time criteria" 1. Your description of being "80% erect" with a soft tip, ability to achieve detumescence with ejaculation (even if incomplete), and lack of severe pain all argue against classic ischemic priapism.

However, the guidelines also note that the combination of tadalafil and sildenafil creates a prolonged pharmacologic effect—tadalafil remains active for more than 2 days 2, and you took 10mg tadalafil on top of 14 days of daily 5mg dosing, then added 60mg sildenafil. This created a massive, sustained vasodilatory state.

What Actually Happened to Your Penis

Your clinical course suggests:

1. Prolonged venous congestion (not complete arterial inflow blockage) causing endothelial injury
2. Corporal smooth muscle edema and possible early fibrosis from sustained engorgement
3. Venous valve dysfunction explaining why you can't fully detumescence and why position affects your erection state
4. Possible cavernosal nerve compression explaining the numbness and altered sensation
5. Pelvic floor dysfunction explaining the urinary hesitancy and bowel straining issues

Why Your Current Symptoms at Day 28 Are Concerning

Red Flags That Require Immediate Action

Your description of:

• Progressive discoloration (dark purple, fluctuating color)
• Persistent firmness even when "soft"
• Nocturnal partial erections every few hours
• Shortened, thicker erections with prominent veins
• Urinary hesitancy and bowel dysfunction
• Numbness that fluctuates

These suggest ongoing vascular dysfunction and possible developing corporal fibrosis. Research shows that priapism lasting >48 hours has a high risk of permanent erectile dysfunction 3, 4, and while you didn't have classic ischemic priapism, you had prolonged venous congestion that can cause similar smooth muscle damage.

What You Need NOW (Not "Wait and See")

Immediate Diagnostic Workup

You need penile duplex Doppler ultrasound immediately to assess:

• Peak systolic velocities (arterial inflow)
• End-diastolic velocities (venous outflow/leakage)
• Presence of corporal fibrosis (echo-dense areas)
• Vascular architecture abnormalities

Research demonstrates that impotent men after prolonged priapism show "severe echo-dense penile fibrosis and high end-diastolic velocities suggesting veno-occlusive incompetence" 4. Your symptoms of inconsistent erections, soft glans, and inability to maintain rigidity all suggest venous leak.

Consider pelvic MRI if Doppler shows significant abnormalities. Studies show MRI can reveal "heterogeneous areas of low signal intensity, corresponding with haemosiderin deposition and fibrosis" 4.

Why Your Erections Are Inconsistent

The inconsistency you describe—some erections half-size and firm, others very thick with soft tip, some with bends—reflects heterogeneous corporal damage:

• Firm but small erections: Fibrotic areas preventing full expansion
• Thick with soft tip: Venous congestion in shaft but inadequate glans filling (arterial insufficiency or venous shunting)
• Bends in the middle: Asymmetric fibrosis creating Peyronie's-like deformity
• Prominent veins: Venous hypertension from outflow obstruction

Position-dependent changes (worse when lying down, better when standing) confirm venous pooling rather than arterial insufficiency.

Why Discoloration Is Worsening

Progressive darkening at day 28 suggests:

• Hemosiderin deposition from chronic venous congestion and red blood cell extravasation
• Ongoing endothelial injury with microvascular thrombosis
• Possible developing fibrosis (which appears darker due to collagen deposition)

This is NOT normal healing—normal resolution would show progressive lightening, not darkening.

Treatment Algorithm You Should Demand

Phase 1: Immediate (This Week)

1. Penile duplex Doppler ultrasound with measurement of:

   • Flaccid and dynamic blood flow
   • Corporal echo-texture
   • Venous leak assessment

2. If Doppler shows significant venous leak or fibrosis:

   • Consider daily low-dose PDE5 inhibitor therapy (tadalafil 5mg daily) to promote oxygenation and prevent further fibrosis 5, 6
   • Vacuum erection device therapy (10 minutes twice daily) to promote blood flow and prevent shortening
   • Pentoxifylline 400mg three times daily (off-label) to reduce fibrosis progression

3. Pelvic floor physical therapy evaluation for the urinary/bowel symptoms

Phase 2: If No Improvement by 6-8 Weeks

• Intracavernosal injection testing to assess erectile capacity
• Consider early penile prosthesis consultation if severe veno-occlusive dysfunction confirmed
• Research shows that "failure to maintain complete detumescence after management" is the most significant risk factor for permanent ED 4

Phase 3: Long-term Management

• Penile rehabilitation protocol if vascular function preserved
• Surgical options (venous ligation, prosthesis) if conservative measures fail

Expected Healing Timeline (Based on Evidence)

Realistic Expectations

If you had true ischemic priapism >48 hours: Recovery of erectile function is unlikely 3

In your case (prolonged partial erection with venous congestion):

• Weeks 0-4: Acute inflammation, edema, discoloration (where you are now)
• Weeks 4-12: Resolution of edema, stabilization of fibrosis, gradual color improvement
• Months 3-6: Functional recovery if smooth muscle viable
• Months 6-12: Final outcome determination

However, your worsening discoloration and persistent symptoms at day 28 suggest you are NOT following a normal healing trajectory.

Critical Pitfalls Your Urologists May Be Missing

1. Assuming "no pain = no problem": The guidelines note pain is not a reliable indicator 1

2. Waiting too long for intervention: Research shows smooth muscle edema and atrophy occur as early as 6 hours 3, and you had sustained engorgement for days

3. Not recognizing venous congestion as distinct from ischemic priapism: You can have significant vascular injury without meeting criteria for emergency aspiration

4. Ignoring the urinary/bowel symptoms: These suggest pelvic floor involvement or possible cauda equina compression from prolonged pelvic congestion—this needs neurologic evaluation

What You Should Do Tomorrow

Call your urologist and specifically request:

• Penile duplex Doppler ultrasound this week
• Referral to pelvic floor physical therapy
• Discussion of daily low-dose tadalafil therapy (ironic, but evidence supports it for penile rehabilitation 5, 6)
• Neurologic evaluation if urinary symptoms persist

If they refuse or continue to dismiss your concerns:

• Seek a second opinion at an academic medical center with a sexual medicine specialist
• The combination of progressive discoloration, persistent firmness, and urinary/bowel dysfunction at 4 weeks is NOT normal healing

Why Some Erections Are Straight and Others Aren't

Spontaneous erections (from arousal, nocturnal) involve different neurologic pathways and may produce uneven corporal filling if there's heterogeneous damage. Manual stimulation (masturbation) allows you to control the degree of engorgement and may produce more uniform filling. The fact that your masturbatory erections are straighter suggests the damage is not uniform throughout the corpora.

Bottom Line

Your urologists are correct that you didn't have classic ischemic priapism requiring emergency intervention at 48 hours, but they are wrong to simply observe at 28 days with worsening symptoms. You need objective vascular assessment NOW to determine if you have reversible venous dysfunction or developing fibrosis. The combination of tadalafil (which stays in your system >2 days 2) and sildenafil created a perfect storm for prolonged venous congestion and corporal injury.

The healing timeline is 3-12 months IF you have viable smooth muscle—but your worsening discoloration suggests ongoing injury that requires intervention, not observation.