UKuchitha (kusuka ku- Greek ὀργασμός , orgasmos ; "injabulo, ukuvuvukala"; futhi uvuthondaba lwezocansi ) ukukhishwa okungazelelwe kwesasasa elinqwabelene locansi phakathi nomjikelezo wokuphendula ngokocansi, okuholela ekuphikisweni kwesigqi semisipha esifundeni se- pelvic esibonakala ngokuzijabulisa kocansi. Okuhlangenwe nakho ngabesilisa nabesifazane, ama-orgasms alawulwa yisistimu yezinzwa engazibandakanyi noma yokuzimela. Imvamisa kuhlotshaniswa nezenzo ezingazibandakanyi, kufaka phakathi ukuphazamiseka kwemisipha ezindaweni eziningi zomzimba, umuzwa ojwayelekile we- euphoric futhi, kaningi, ukunyakaza komzimba nokuzwakalayo. Isikhathi esingemva kwe-orgasm (esaziwa njengesikhathi sokuphikisa) imvamisa siyisipiliyoni sokuphumula, esenziwa ukukhishwa kwe- neurohormones oxytocin kanye neprolactin kanye nama- endorphins (noma "endogenous morphine "). Ama-orgasms womuntu ajwayele ukuvela ekuvuseleleni ngokomzimba ipipi emadodeni (ngokujwayelekile ahambisana ne- ejaculation ) kanye ne- clitoris kwabesifazane. Ukugqugquzela ngokocansi kungaba ngokuzenzela ( ukushaya indlwabu ) noma ngomlingani ocansini ( ucansi olungena, ucansi olungangenisi, noma eminye imisebenzi yezocansi ). Imiphumela yezempilo ezungeze i-orgasm yomuntu yehlukile. Kunezimpendulo eziningi zomzimba ngesikhathi sokwenza ucansi, kufaka phakathi isimo esikhululekile esenziwe yi-prolactin, kanye nezinguquko ohlelweni lwezinzwa oluphakathi njengokuncipha kwesikhashana kokusebenza komzimba kwezingxenye ezinkulu ze- cerebral cortex ngenkathi kungekho shintsho noma ukwanda komzimba umsebenzi ezingxenyeni ze- limbic (isb., "ezisemngceleni") zobuchopho.