Cancer cells divide more quickly than healthy cells, and chemotherapy drugs effectively target those cells. Unfortunately, fast-growing cells that are healthy can be damaged too. There are many different chemotherapy drugs with the potential for many different side effects.
Symptoms & Signs. Dark circles under the eyes are a common complaint of both men and women, although they can occasionally be seen in children. As people age, the skin becomes thinner and collagen is lost, sometimes enhancing the appearance of blood vessels beneath the eyes and making the area appear darker.
Dark circles under eyes: Introduction. Dark circles under eyes: Rings or dark circles under the eyes. See detailed information below for a list of 110 causes of Dark circles under eyes, Symptom Checker, Assessment Questionnaire, including diseases and drug side effect causes.