Differential Diagnosis for Blood Blister on Scrotum
- Single Most Likely Diagnosis
- Trauma: This is the most likely cause of a blood blister on the scrotum, as it can result from a direct blow to the area, leading to blood accumulation under the skin.
- Other Likely Diagnoses
- Angiokeratoma: A benign vascular lesion that can appear as a blood blister and is common on the scrotum.
- Thrombophlebitis: Inflammation of a vein due to a blood clot, which can cause a painful blister-like lesion.
- Scrotal hematoma: A collection of blood outside of blood vessels, which can occur spontaneously or due to trauma.
- Do Not Miss Diagnoses
- Testicular torsion: Although it typically presents with severe pain and swelling, a blood blister could be an associated finding, and missing this diagnosis can lead to loss of the testicle.
- Scrotal cellulitis or abscess: Infection of the scrotum, which can cause redness, swelling, and potentially a blood-filled blister, requiring prompt antibiotic treatment.
- Malignancy (e.g., scrotal squamous cell carcinoma): Although rare, any unexplained or persistent lesion on the scrotum should be evaluated for the possibility of cancer.
- Rare Diagnoses
- Fabry disease: A genetic disorder that can cause angiokeratomas, including on the scrotum, due to the accumulation of a particular type of fat in the body's cells.
- Scurvy: Vitamin C deficiency, which can lead to poor wound healing and potentially to blood blisters due to blood vessel fragility.
- Kaposi's sarcoma: A type of cancer that can cause lesions on the skin, including the scrotum, especially in immunocompromised individuals.