Superficial penile thrombophlebitis or penile Mondor's disease (PMD) is an underreported condition that causes anxiety and embarrassment in affected men. Patients usually present with a smooth, cord-like induration on the dorsal penile shaft 1-7 days after prolonged or intensive sexual intercourse, but other presentations of disease and triggers for endothelial damage are possible. The condition is typically self-limited with expected spontaneous resolution within 4-8 weeks of initial presentation, and absolute diagnosis is usually not necessary with management including supportive care and pain control. However, when disease course is prolonged or there are concerning risk factors, it may be important to differentiate PMD from other conditions such as Peyronie's disease, hypercoagulability, blood stasis, genitourinary infection, and malignancy. History and physical are often sufficient to distinguish these conditions from PMD, but providers may employ ultrasound to assist with the diagnosis. If PMD does not spontaneously resolve, patients may be considered for thrombectomy, at which point histological analysis can confirm the diagnosis.