Such a disease may not make itself felt, and in the acute period, a strong acute colic on the side of the formation of a cyst, more reminiscent of pain, with inflammation of the appendix, manifest itself. Precisely, therefore, without research, you can confuse the diagnosis in connection with the similarity of the symptoms. Ovary cyst usually appears as a unilateral disease that affects the right or left ovary, in the form of fluid formation around the ovarian tissue. Thus, on an ultrasound, you can see an increase in the size of the organ by several times. The causes of this disease. On the one hand, this can be caused by hormonal changes, on the other hand, indicate serious problems in the whole body.