"Depression can exist before the diagnosis of cancer or may develop after the cancer is identified."

"If a physical cause for the depression is ruled out, a psychological evaluation should be done, by the physician or by referral to a psychiatrist or psychologist."

Co Occurrence of Depression with Other Illnesses


Depression can coexist with other illnesses. In such cases, it is important that the depression and each co occurring illness be appropriately diagnosed and treated.

Research has shown that anxiety disorderswhich include post traumatic stress disorder (PTSD), obsessive compulsive disorder, panic disorder, social phobia, and generalized anxiety disordercommonly accompany depression. Depression is especially prevalent among people with PTSD, a debilitating condition that can develop after exposure to a terrifying event or ordeal in which grave physical harm occurred or was threatened. Traumatic events that can trigger PTSD include violent personal assaults such as rape or mugging, natural disasters, accidents, terrorism, and military combat. PTSD symptoms include: re experiencing the traumatic event in the form of flashback episodes, memories, or nightmares; emotional numbness; sleep disturbances; irritability; outbursts of anger; intense guilt; and avoidance of any reminders or thoughts of the ordeal. In one NIMH supported study, more than 40 percent of people with PTSD also had depression when evaluated at one month and four months following the traumatic event.

Substance use disorders (abuse or dependence) also frequently co occur with depressive disorders.5,6 Research has revealed that people with alcoholism are almost twice as likely as those without alcoholism to also suffer from major depression.6 In addition, more than half of people with bipolar disorder type I (with severe mania) have a co occurring substance use disorder.

Depression has been found to occur at a higher rate among people who have other serious illnesses such as heart disease, stroke, cancer, HIV, diabetes, and Parkinsons. Symptoms of depression are sometimes mistaken for inevitable accompaniments to these other illnesses. However, research has shown that the co occurring depression can and should be treated, and that in many cases treating the depression can also improve the outcome of the other illness.

"A study supported by the National Institute of Mental Health (NIMH) found that CBT led to remission in nearly 65 percent of cases, a higher rate than either supportive therapy or family therapy."

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"CBT, designed to be a time-limited therapy, focuses on changing these distortions."

Sleep Apnea Disorders

"Depression is a serious medical condition that affects the body, mood, thoughts, the way one eats and sleeps, how one thinks about things, and one's self perception."

Disorder Meletonin Sleep

"The first step to getting appropriate treatment for depression is a physical examination by a physician."

Child Sleep Disorders

"The prognosis for treatment of depression in children is good."

Anxiety Sleep Apnea Disorder

"In some families, depressive disorders seem to occur generation after generation; however, they can also occur in people with no family history of these illnesses."