Tumescence is the quality or state of being tumescent or swollen. Tumescence usually refers to the normal engorgement with blood (vascular congestion) of the erectile tissues, marking sexual excitation, and possible readiness for sexual activity. The tumescent sexual organ in males is the penis and in females is the clitoris and other parts of the genitalia like the vestibular bulbs. Arteries in the penis dilate to increase blood volume.
Detumescence is the reversal of this process, by which blood leaves the erectile tissue, returning the erectile tissue to the flaccid state. Something that causes an erection is sometimes referred to as a tumefier (tumefyer) or tumescer.
- Nocturnal penile tumescence
- Swelling (medical)
- Nocturnal clitoral tumescence
- Nocturnal emission
- Sleep sex
- Intumescent, a substance that swells up when heated
- "Tumescence: The Sexual Response - The Female Response". Archive of Sexology. Humboldt Universität zu Berlin. Archived from the original on 1 July 2006. Retrieved 26 January 2021.
- "1. Excitement: The Sexual Response - The Male Response". Archive of Sexology. Humboldt Universität zu Berlin. Archived from the original on 4 July 2007. Retrieved 26 January 2021.
- Bella, Anthony J.; Lue, Tom F. "Chapter 38. Male Sexual Dysfunction". In Tanagho, EA; McAninch, JW (eds.). Smith's General Urology (17th ed.). as DOC file at zju.edu.cn. Archived from the original on 2018-07-21.
- McFarlane, Gordon A.; Sammon, Alastair M. (2000). "A prepaid healthcare scheme in rural Africa". Tropical Doctor. 30 (3): 151–54. doi:10.1177/004947550003000313. PMID 10902473. S2CID 29060115.