<unk>  is a condition in which a penis remains erect for hours in the absence of stimulation or after stimulation has ended. There are three types: ischemic (low-flow), nonischemic (high-flow), and recurrent ischemic (intermittent). Most cases are ischemic. Ischemic<unk>  is generally painful while nonischemic<unk>  is not. In ischemic<unk> , most of the penis is hard; however, the glans penis is not. In nonischemic<unk> , the entire penis is only somewhat hard. Very rarely, clitoral<unk>  occurs in women. Sickle cell disease is the most common cause of ischemic<unk> . Other causes include medications such as antipsychotics, SSRIs, blood thinners and prostaglandin E1, as well as drugs such as cocaine and cannabis. Ischemic<unk>  occurs when blood does not adequately drain from the penis. Nonischemic<unk>  is typically due to a connection forming between an artery and the corpus cavernosum or disruption of the parasympathetic nervous system resulting in increased arterial flow. Nonischemic<unk>  may occur following trauma to the penis or a spinal cord injury. Diagnosis may be supported by blood gas analysis of blood aspirated from the penis or an ultrasound. Treatment depends on the type. Ischemic<unk>  is typically treated with a nerve block of the penis followed by aspiration of blood from the corpora cavernosa. If this is not sufficient, the corpus cavernosum may be irrigated with cold, normal saline or injected with phenylephrine. Nonischemic<unk>  is often treated with cold packs and compression. Surgery may be done if usual measures are not effective. In ischemic<unk> , the risk of permanent scarring of the penis begins to increase after four hours and definitely occurs after 48 hours.<unk>  occurs in about 1 in 20,000 to 1 in 100,000 males per year.
Priapism
Pseudophobia
Autophobia
Neophobia
Piquerism
Dysorgasmia
Hyperorgasmia
Dysmelia