Diseases & Conditions

Recognizing the signs of a behavioral health disorder is the first step to recovery. A mental illness is a condition that can negatively impact your thinking, feeling or mood and may affect your ability to relate to others and function on a daily basis. Research suggests that genetics, environment and lifestyle combine to influence whether or not you develop a mental health condition. Below is a list of common mental health disorders we treat at Westlake Hospital.

Attention Deficit Hyperactivity Disorder

Attention deficit hyperactivity disorder (ADHD) is a developmental disorder in which there are significant problems with attention, hyperactivity or acting impulsively.

Anxiety Disorders

Everyone experiences anxiety sometimes, but when it becomes overwhelming and repeatedly impacts a person's life, it may be an anxiety disorder. The most common anxiety disorders include panic disorders, social anxiety disorder, generalized anxiety disorder and phobias.

Bipolar Disorder

Bipolar disorder is a chronic mental illness that causes dramatic shifts in a person’s mood, energy and ability to think clearly. People with bipolar have high and low moods, known as mania and depression, which differ from the typical ups and downs most people experience.

Borderline Personality Disorder (BPD)

Borderline personality disorder (BPD) is a condition characterized by difficulties in regulating emotion. This difficulty leads to severe, unstable mood swings, impulsivity and instability, poor self-image and stormy personal relationships.


Depression is a serious mental health condition that requires understanding, treatment and a good recovery plan. With early detection and a treatment plan consisting of medication, psychotherapy and lifestyle changes, many people can overcome depression.

Dissociative Disorders

Dissociative disorder refers to a spectrum of disorders that affect a person's memory and self-perception. Dissociative disorders are characterized by an involuntary escape from reality characterized by a disconnection between thoughts, identity, consciousness and memory.

Obsessive-Compulsive Disorder

Obsessive-compulsive disorder (OCD) is characterized by repetitive, unwanted, intrusive thoughts (obsessions) and irrational, excessive urges to do certain actions (compulsions). Although people with OCD may know that their thoughts and behavior don't make sense, they are often unable to stop them.

Post-Traumatic Stress Disorder

Traumatic events, such as military combat, assault, an accident or a natural disaster, can have long-lasting negative effects. Sometimes our biological responses and instincts, which can be lifesaving during a crisis, leave people with ongoing psychological symptoms because they’re not integrated into consciousness.

Schizoaffective Disorder

Schizoaffective disorder is a chronic mental health condition characterized primarily by symptoms of schizophrenia, such as hallucinations or delusions, and symptoms of a mood disorder, such as mania and depression.


Schizophrenia is a serious mental illness that interferes with your ability to think clearly, manage emotions, make decisions and relate to others. It is a complex, long-term medical illness, affecting about 1 percent of Americans.