Chronic Fatigue Syndrome Index

Featured: Chronic Fatigue Syndrome (CFS or SEID) Main Article

Chronic fatigue syndrome (CFS) or systemic exertion intolerance disease (SEID) is a debilitating and complex disorder characterized by profound fatigue that lasts six months or longer, is not improved by bed rest, and may be worsened by physical or mental activity.


    Related Diseases & Conditions

    • Night Sweats Night sweats are severe hot flashes that occur at night and result in a drenching sweat. In order to distinguish night sweats...learn more »
      In This Article
      Night Sweats Article
      • Introduction to night sweats
      • What are the causes of night sweats in women, men, and children?
      • What are the symptoms of night sweats?
      • Menopause
      • Idiopathic hyperhidrosis
      • Infections
      • Cancer
      • Medications
      • Hypoglycemia
      • Hormone disorders
      • Neurologic conditions
      • Night sweats treatment
    • Abdominal Pain (Causes, Remedies, Treatment) Abdominal pain can have many causes. Some of the less serious causes include bloating, gas, colitis, endometriosis, food...learn more »
    • Diarrhea Diarrhea is a change is the frequency and looseness of bowel movements. Cramping, abdominal pain, and the sensation of rectal...learn more »
      In This Article
      Diarrhea Article
      • Diarrhea facts
      • What is diarrhea?
      • What is the definition of diarrhea?
      • What symptoms are associated with diarrhea?
      • What are common causes of acute diarrhea?
      • Traveler's diarrhea
      • Viral gastroenteritis
      • Bacterial enterocolitis
      • Food poisoning
      • Parasites
      • Drugs
      • What are common causes of chronic diarrhea?
      • When should the doctor be called for diarrhea?
      • How is the cause of diarrhea diagnosed?
      • What home remedies help the symptoms of diarrhea?
      • What medications are used to treat diarrhea?
      • When should antibiotics be used for diarrhea?
      • What are the complications of diarrhea?
      • How can dehydration be prevented and treated?
    • Menopause Menopause is the time in a woman's life when menstrual periods permanently stop, also called the "change of life." Menopause...learn more »
    • Pregnancy (Week By Week, Trimesters) There are many symptoms involved in the 1st, 2nd and 3rd trimesters of pregnancy. The first early pregnancy symptom is typically...learn more »
      In This Article
      Pregnancy (Week By Week, Trimesters) Article
      • Pregnancy facts*
      • Introduction
      • What is the first trimester (week 1-week 12)?
      • What is the second trimester (week 13-week 28)?
      • What is the third trimester (week 29-week 40)?
      • How will my baby develop week by week?
      • What are the changes that happen to a woman's body during the 1st, 2nd, and 3rd trimester of her pregnancy?
      • Body aches
      • Breast changes
      • Constipation
      • Dizziness
      • Fatigue, sleep problems
      • Heartburn and indigestion
      • Hemorrhoids during pregnancy
      • Itching
      • Leg cramps
      • Morning sickness
      • Nasal problems
      • Numb or tingling hands
      • Stretch marks, skin changes
      • Swelling
      • Urinary frequency and leaking
      • Varicose veins
    • Lyme Disease Lyme disease is a bacterial illness, which is spread by ticks when they bite the skin. Initially the disease affects the skin...learn more »

Related FAQs, Doctor's & Expert's Views

Health & Living

Procedures & Tests

Health News

Health Features

Tools & References

Terms related to Chronic Fatigue Syndrome:

  • Chronic Fatigue and Immune Dysfunction Syndrome
  • Myalgic Encephalomyelitis
  • Postviral Fatigue Syndrome