The current study aimed to isolate and diagnose Candida spp yeasts that cause candidiasis with a PCR device from patients reviewed for some hospitals in Baghdad city and by 190 samples, the study recorded 123 isolates and the total percentage of infection was 64.7% .Samples were taken from different clinical cases of the vagina, blood and mouth and the Candida spp were (70.37%, 41.26%, 86.95%) respectively. Five types of yeasts were isolated and diagnosed, namely C. albicans, C. tropicalis, C. parapsilosis, C. krusei and C.glabarta. They were confirmed by PCR device and the most notable were yeast C. albicans, where 91 isolates were found, 73.98%, while the lowest infection was recorded. C.glabartawith 3 isolates, at 2.43%, significant differences at P  0.001.The C. albicans showed the ability to form a Grem tube and Chlamydospore formation. Cultivation on the differential medium, chromo agar, showed that the yeast of C. albicans in a light green color, C.tropicalis in a metallic blue and C.parapsilosis in a creamy white color as the C .krusei was light pink in color, while C.glabrata was pinkish-purple in color. Isolation and diagnosis of these species have been confirmed by the Vitek2 Compact System. Four types of antifungal agents, Nystatin, Amphotericin, Clotrimazole and Ketoconazole, were used, The results showed a different effect of antifungals on Candida spp. The results of the PCR using the fungi starter pair (ITS1, ITS4) showed that they produced different molecular sizes ranging from (510-870) bp where the type of C. albicans was 535 bp and C. krusie was bp 510 and C.tropicalis was bp 524 and C. parapsilosis was bp520 and C.glabrata were bp 870