Swollen Foreskin: Causes (Phimosis, Balanitis, Paraphimosis), Treatment, and When to Seek Help

Foreskin swelling (preputial edema) often resolves with hygiene, but persistent or painful swelling requires medical evaluation.

Common Causes

1. Phimosis

• Physiologic (normal in infants/children; resolves by adolescence).
• Pathologic: scarring (BXO—balanitis xerotica obliterans), recurrent balanitis, forced retraction.
• Symptoms: Ballooning during voiding, pain, recurrent infections, urinary retention.
• Treatment: Topical steroid (betamethasone 0.05% × 4–8 weeks), gentle stretching; circumcision if refractory.

2. Balanitis / Balanoposthitis

• Inflammation of glans ± foreskin. Causes: Candida (most common), bacteria (Strep, Staph), irritants (soaps), diabetes, poor hygiene.
• Signs: Erythema, swelling, itching, discharge, foul odor.
• Treatment: Antifungal (clotrimazole) or antibiotic cream; improved hygiene; glycemic control if diabetic.

3. Paraphimosis (Urologic Emergency)

• Retracted foreskin trapped behind coronal sulcus → venous/lymphatic congestion → edema → arterial compromise.
• Signs: Painful, swollen, dusky glans; unable to reduce.
• Immediate reduction: Manual compression (ice, lubrication, thumb pressure on glans, forward push on foreskin) or dorsal slit under local anesthesia.
• Definitive: Circumcision after edema resolves.

When to Seek Care

• Swelling >2 weeks despite hygiene.
• Pain, dysuria, purulent discharge, fever.
• Inability to retract (phimosis) or reduce (paraphimosis).
• Diabetic or immunocompromised.

Urologist or primary care can diagnose and treat; paraphimosis needs same‑day intervention.