Hard flaccid syndrome (HFS), eyaziwa nangokuthi flaccid kanzima (hf), okumiyo ubuhlungu elinesimo lulwimi ngendlela elukhuni umthondo isimo flaccid, ethambile glans isimo uqonde, ubuhlungu bamathambo okhalo, ongaphakeme libido, Erectile Dysfunction, ubuhlungu Erectile, ubuhlungu ku ejaculation, penile izinguquko sezinzwa (ndikindiki noma coldness), yehlisa urinary izimpawu pheshana, ukusikwa we esitezi okhalo imisipha, nokucindezeleka ngokwengqondo.Okunye izikhalazo zihlanganisa rectal futhi isizalo ukungakhululeki, izandla abandayo futhi izinyawo, umuzwa eziyize noma ihlukane ngaphakathi kushaft penile.Iningi leziguli ze-HFS zikuma-20s-30s kanti izimpawu zalo zithinta kakhulu izinga lomuntu lokuphila. Abagulayo ngokuvamile babika ukuqala kwezimpawu ngemuva kokuhlukumezeka ngenxa yokuhlukumezeka ngesikhathi sokuya ocansini noma ukushaya indlwabu okunzima, ikakhulukazi ukulimala okubuhlungu phansi kwepenisi eqondile, okungenzeka kuthinte umthambo we-dorsal we-penis, i- bulbourethral kanye nemithambo ye-pudendal, kanye ne- pudendal ne- dorsal nerve yomthondo .Izinguquko zezinzwa nezombhalo we-Penile, kanye nezinguquko ekubukekeni, ziyizimpawu zesimo futhi zisebenza ukuhlukanisa i-HFS ku-classic pelvic pain syndrome noma i- BPH. Kokubili imithelela yezinto eziphilayo nezingokwengqondo ifaka isandla kulesi simo ngokuguqula ukunikezwa kwemithambo yegazi emisipheni yangaphansi ne-penis.