N48.30

Clinical Causes: Blood disorders such as sickle cell anemia, leukemia, or thalassemia Certain medications including erectile dysfunction drugs, antidepressants, and antipsychotics Use of recreational drugs such as cocaine or methamphetamine Trauma or injury to the genital area or pelvis Spinal cord injuries that affect blood flow or nerve signals Infections and inflammation in the pelvic region Obstruction of venous outflow from the penis Unknown or idiopathic cases where no specific cause can be identified

Key Symptoms: Persistent and often painful erection lasting longer than four hours Erections that are not related to sexual arousal Discoloration of the penis, which may appear dark or bluish Swelling or hardness in the penile tissue Discomfort or throbbing sensation Potential symptoms of underlying causes such as fever or malaise if infection is involved

Diagnosis Path: Blood tests to identify underlying conditions like sickle cell disease or infections Blood gas analysis of penile blood to assess oxygen levels and blood flow Doppler ultrasound imaging to evaluate blood flow within the penis Urinalysis to detect signs of infection or other abnormalities Assessment for potential underlying causes based on medical history

Treatment Protocols: Aspiration of blood from the penile corpora cavernosa using a needle and syringe Injection of medications like phenylephrine directly into the penile tissue to constrict blood vessels Surgical intervention in severe or recurrent cases to remove or bypass blockages Management of underlying conditions such as blood disorders or infections Use of medications to prevent or manage episodes if recurrent In cases related to medication side effects, adjusting or discontinuing the offending drug under medical supervision