Health Decision Guides

Harvard Health Decision Guides created by the Faculty of the Harvard Medical School take users through a personalized, interactive approach to 140 medical issues that people face every day. The Guides cover the most common symptoms in adults and children and a variety of abnormal laboratory test results. Through a series of questions and answers, users learn how doctors think about medical problems and what action to take.

To access sample guides for a demonstration, click on any of the four areas to the right: Adults, Men, Women, or Children, and view a few selected, highlighted sample guides on each page. Read through the questions and click on the highlighted choices under each question to learn how the guides work.

Adult Symptom Checkers

Acid Reflux Treatment
Ankle Pain
Blacking Out, Fainting, or Loss of Consciousness
Chest Pain
Colon Cancer Screening
Constipation in Adults
Coughs and Colds
Daytime Drowsiness
Difficulty Passing Urine
Diffuse Muscle Weakness
Diffuse Pain
Dry Eyes and Mouth
Dry Mouth/Excessive Thirst
Earache in Adults
Elbow Pain
Eye Discharge
Fever in Adults
Foot Pain
Hand Pain
Hip Pain
Hot Flashes
Intestinal Gas Guide
Itching Without Rash
Jaundice in Adults
Knee Pain
Lightheaded with Standing
Helping Dry Skin
Jaw, Gum, or Tooth Pain
Lower Back Pain
Nail Problems
Nausea and Vomiting
Neck Pain
New & Severe Abdominal Pain
New Onset Dizziness
Numbness or Tingling
Osteoarthritis of the Knee
Pain in the Eye
Persistent Cough
Persistent Knee Swelling
Positive ANA
Positive Rheumatoid Factor
Rectal Bleeding
Rectal Pain or Itching
Recurring Abdominal Pain
Shortness of Breath
Shoulder Pain
Smell and Taste Loss
Sore Throat
Sudden Hearing Loss
Swallowing Difficulty
Swollen Glands (General)
Swollen Glands in the Neck
Unexplained Weight Gain
Unintentional Weight Loss
Wheezing in Adults
Wrist Pain

Men’s Symptom Checkers

Blood in the Urine in Men
Causes of Impotence
Hair Loss in Men
Loss of Control of Urine in Men
Lumps or Pain within the Scrotum
Painful or Frequent Urination in Men
Penis Pain, Sores, Discharge or Lumps
Sexual Problems in Men
Treatment of Impotence
Understanding PSA 

Women’s Symptom Checkers

Birth Control (Contraception)
Bleeding after Menopause
Bleeding Between Menstrual Periods
Blood in the Urine in Women
Breast Lumps
Breast Pain
Excessive Body/Facial Hair
Frequent Urination in Women
Hair Loss in Women
Headache in Pregnancy
Heavy Menstrual Periods
Leg Swelling (Edema), New Onset
Leg Swelling (Edema), Pregnancy
Loss of Control of Urine in Women
Missed or Irregular Menstrual Periods
Never Started Menstrual Periods
Painful Menstrual Cramps
Vaginal Discharge, Itching or Irritation
Vaginal Dryness
Vaginal Pain or Discomfort
Vaginal Sores and Lumps
When Menstrual Periods Stop

Children’s Symptom Checkers

Abdominal Pain in Children
Allergic Rhinitis Treatment in Children
Asthma Treatment in Kids
Car Seats
Constipation in Children
Constipation in Infants
Coughing in Infants and Children
Crying in Infants
Diaper Rash
Diarrhea in Children
Diarrhea in Infants
Ear Pain in Infants and Children
Fever in Children
Fever in Infants
Headaches in Children
Head Injury in Children
Irritable Child
Jaundice in Newborns
Nutrition Assessment for Infants and Toddlers
Pink or Red Eyes in Children
Rash in Children
Rash in Newborns
Risk of Iron Deficiency in Children
Shortness of Breath
Sore Throat in Children
Treating the Common Cold in Children
Treatment of Chronic Constipation
Treatment of Warts in Children
Unexplained Weight Gain in Children
Unexplained Weight Loss in Children
Vomiting or Nausea in Children
Vomiting in Infants