Medicine Online
Any medical inquiries? Search MOL for answers:
Home > Medical Articles > Articles beginning with I > Irritability in Adults > Overview, Causes, & Risk Factors
Medical References
Diseases & Conditions
Women's Health
Mental Health
Men's Health
Medical Web Links
MOL Site Map
Medical Tips
Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
Read more health news

Irritability in Adults


Overview, Causes, & Risk Factors

Irritability is a state of being overly sensitive to stimulation. Adults who are irritable may easily become impatient or angry.

What is going on in the body?

When a person is irritable, he or she may be responding to something that causes pain, concern, fright, or discomfort. In some cases, a serious medical condition can cause irritability.

What are the causes and risks of the condition?

Mild irritability in adults is common. It can be due to the person being tired or overworked, having a bad day, or just dealing with long lines and traffic. However, adults may also become irritable from a number of medical conditions, including:

  • injury or infections of any part the body
  • addiction to or withdrawal from drugs, including alcohol, nicotine, or caffeine
  • head injury or intracerebral hemorrhage, which is bleeding inside the brain
  • increased intracranial pressure, which is increased pressure within the brain that can be caused by brain tumors or other conditions
  • infections involving the brain, such as meningitis, an infection of the brain lining
  • elder abuse
  • cancer, such as a brain tumor
  • reaction to medications or vaccines, such as a flu shot
  • any serious illness, such as liver disease, chronic obstructive pulmonary disease, kidney disease, or heart disease
  • emotional or mental disorders, such as acute situational anxiety\ \generalized anxiety disorder\ \ panic disorder \ \ post-traumatic stress disorder \ \phobias\ \ obsessive compulsive disorders \ ',CAPTION,'Anxiety Disorders');" onmouseout="return nd();">anxiety disorders, schizophrenia, depression, abnormal grief, or post-traumatic stress disorder
  • headaches, such as migraines or tension headaches
  • autoimmune disorders, in which a person's immune system attacks his or her own body
  • hormone imbalances, including premenstrual syndrome (PMS), diabetes, and hyperthyroidism
  • poisoning from toxic substances, such as lead poisoning
  • vitamin or mineral deficiencies, such as iron or folate deficiency
  • any other new or chronic illness

  • HomeSitemap Contact UsAdvertisingPress RoomGive Us Your FeedbackRead Our Terms & Conditions and Our DisclaimerPrivacy Statement