According to Mayo Clinic, Cushing syndrome is a mix of symptoms that develop when a person's body is exposed to high levels of cortisol for a prolonged period of time. Symptoms of Cushing syndrome include a deposit of body fat in characteristic patterns, fatigue and purple or pink stretch marks.
Mayo Clinic explains that if Cushing syndrome is not treated, it can lead to osteoporosis, high blood pressure, diabetes and frequent infections. The most common cause of Cushing syndrome is the use of oral corticosteroid medications for a long period of time. Pituitary tumors can also cause Cushing syndrome. Treatment includes surgery, medication and radiation therapy.