Candida albicans is a fungus that is usually found in the mouth, upper respiratory tract, intestines and vagina of normal people. It is usually found in small numbers in the normal organism and does not cause disease. When the immune function or general defense of the body decreases or the normal flora becomes dysfunctional, Candida albicans will multiply and change its growth form to invade cells and cause disease. The main causative agent of candidiasis is Candida albicans, according to the different parts of its infection can be divided into the following: 1, oral candidiasis: also known as thrush, most often in infants and young children, especially newborns. Immunocompromised people, especially AIDS patients are more susceptible to the disease. 2, Candida inter-rub rash: this disease occurs in obese sweaty people and diabetic patients, often occurring in between the fingers, axillae, under the breast, buttock groove and other folds. 3.Candida vaginitis: It occurs in diabetic and pregnant women. The manifestation is increased vaginal discharge, white or yellow curd-like, with obvious itching. 4, candida glansitis: often associated with sexual contact transmission. It will be consciously itchy, and the surface may have scales or cheese-like material. 5, smooth skin candidiasis: one is an infection that occurs in the diaper area of infants or secondary to diaper dermatitis, and the other can occur in pediatric and adult. 6.Candida nail infection and nail disease: it can lead to thickening of the nail plate, turning brownish black, etc. 7, systemic candidiasis: is caused by Candida invasion of internal organs. There are bronchial and pulmonary candidiasis, and gastrointestinal candidiasis, etc. In summary, the above is Candida albicans easy to cause the disease, the above disease, must be promptly to do fungal and serological examination.