Red scrotum syndrome - Anogenital in
See also in: Cellulitis DDxAlerts and Notices
Synopsis

Red scrotum syndrome (RSS), also known as male genital dysesthesia, is characterized by persistent erythema of the scrotum, burning pain, and hyperalgesia. The pathophysiology of RSS is poorly understood, but proposed causes include rebound vasodilation after chronic topical corticosteroid use, localized erythromelalgia, and neurogenic inflammation.
White men older than 50 have the highest incidence of this condition, but cases have been reported in younger individuals. Patients commonly present with scrotal erythema and burning pain with a preceding history of topical corticosteroids on the affected area. The average duration of topical corticosteroid use is 27 months, but cases of RSS have occurred after as few as 2 weeks. RSS can develop after prolonged use of topical corticosteroids with a potency as low as over-the-counter hydrocortisone cream. A common complaint is difficulty sitting normally due to pressure on the scrotum causing pain. RSS is a chronic condition that is difficult to treat, which can cause profound psychological distress.
RSS is thought to be part of red burning skin syndrome, which describes other presentations of rebound vasodilation following chronic use of topical corticosteroids, including red face syndrome, red scalp syndrome, red ear syndrome, and red vulva syndrome.
White men older than 50 have the highest incidence of this condition, but cases have been reported in younger individuals. Patients commonly present with scrotal erythema and burning pain with a preceding history of topical corticosteroids on the affected area. The average duration of topical corticosteroid use is 27 months, but cases of RSS have occurred after as few as 2 weeks. RSS can develop after prolonged use of topical corticosteroids with a potency as low as over-the-counter hydrocortisone cream. A common complaint is difficulty sitting normally due to pressure on the scrotum causing pain. RSS is a chronic condition that is difficult to treat, which can cause profound psychological distress.
RSS is thought to be part of red burning skin syndrome, which describes other presentations of rebound vasodilation following chronic use of topical corticosteroids, including red face syndrome, red scalp syndrome, red ear syndrome, and red vulva syndrome.
Codes
ICD10CM:
L53.9 – Erythematous condition, unspecified
N50.89 – Other specified disorders of the male genital organs
SNOMEDCT:
238969001 – Burning scrotum
65645005 – Scrotal pruritus
L53.9 – Erythematous condition, unspecified
N50.89 – Other specified disorders of the male genital organs
SNOMEDCT:
238969001 – Burning scrotum
65645005 – Scrotal pruritus
Look For
Subscription Required
Diagnostic Pearls
Subscription Required
Differential Diagnosis & Pitfalls
- Erysipelas
- Cellulitis – Swelling of the penis or scrotum will be present and may be associated with fever and malaise.
- Epididymo-orchitis
- Contact urticaria – Redness and swelling that last for only a short period of time and is not limited to the anterior scrotum.
- Fixed drug eruption – Will have red patches or plaques that may be vesicular or erosive.
- Scrotal abscess
- Angioedema
- Fournier or gas gangrene
- Contact dermatitis – May involve nonscrotal areas; can perform patch testing if suspected.
- Herpes simplex virus or zoster
- Atopic dermatitis – May be signs of atopy and extragenital involvement.
- Inverse psoriasis – Evaluate with histopathological examination if suspected.
- Langerhans cell histiocytosis – Evaluate with histopathological examination if suspected.
- Contact dye dermatitis of the scrotum
- Tinea cruris – Evaluate with potassium hydroxide (KOH) preparation if suspected.
- Candidiasis
- Seborrheic dermatitis
- Erythrasma – Evaluate with Wood's lamp examination if suspected.
Best Tests
Subscription Required
Management Pearls
Subscription Required
Therapy
Subscription Required
Drug Reaction Data
Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.
Subscription Required
References
Subscription Required
Last Reviewed:10/31/2022
Last Updated:11/13/2022
Last Updated:11/13/2022
Red scrotum syndrome - Anogenital in
See also in: Cellulitis DDx