Persistent genital arousal disorder (PGAD)—which is almost exclusively experienced by females and characterized by spontaneous and unwanted sexual arousal unrelated to desire—can compromise individuals’ mental health and well-being and severely damage relationships with partners.
Results from a new study by investigators at Massachusetts General Hospital (MGH) indicate that PGAD can be caused by altered firing of nerves that carry sensations from the genitalia or by damage to the lowest parts of the spinal cord. The study also found that neurological treatments benefit many patients.
“It’s important that people know of this medical condition and that it is primarily a neurological problem, not a psychiatric one,” said senior author Bruce Price, MD, an MGH Department of Neurology investigator who is also chief of Neurology at McLean Hospital. “Many affected women are silent and undercover—it’s in no way a fun condition, and it is difficult for patients to address their symptoms with their doctors, who have typically never heard of PGAD.” The problem can be especially troubling for adolescents, causing confusion, shame, and fear.
The study, published in PAIN Reports, included 10 females whose PGAD symptoms began between ages 11 to 70 years. Although the study involved only a small number of patients, it’s still one of the first to carefully examine PGAD in a thorough and scientific manner.
Spinal nerve-root cysts were detected in four patients and generalized sensory nerve damage (neuropathy) in two. One patient with symptoms since childhood was born with a small defect in her lowest spinal cord, one had a lumbosacral herniated disc in the lower back, and another developed short-lived PGAD when she abruptly stopped a prescribed antidepressant medication.
All psychiatric and gynecological treatments were ineffective, and injecting local anesthetics had no lasting benefit. In contrast, neurological treatments—such as cyst removal and treating nerve damage—were effective in 80% of patients.
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