Left adnexal cysts generally refer to cystic tumors in the left fallopian tube or ovary, with ovarian cysts being the most common in clinical practice. Left adnexal cysts can develop at any age and are more common in the reproductive years. The causes of their formation are usually twofold: first, they can be caused by inflammation or physiological cysts during the menstrual cycle; second, they can also be pathological, so it usually depends on the nature of the cyst to determine how to deal with it. In clinical practice, the most frequent symptoms of left adnexal cysts, if they are inflammatory, are: pain in the abdomen, increased leucorrhea, yellowish or odorous, which can be accompanied by menstrual disorders. It may also cause pain during sexual intercourse. In addition, if the body is affected by hormones, cysts can be formed, mostly physiological, such as polycystic ovary syndrome, there will be irregular vaginal bleeding or increased body hair and other symptoms; when it has been determined that there is an adnexal cyst that does not disappear and absorbed, it may be pathological, if not treated in time, once the cyst is twisted, there will also be more serious abdominal pain, abdominal distension, acute abdomen and other symptoms; if the cyst volume If the cyst is large, it will cause some pressure near the bladder, leading to frequent urination and difficulty in urination, etc. It can be seen that left adnexal cyst is a very common gynecological disease, if the cyst is diagnosed, you need to go to the hospital for treatment in time.