Medical history: Compiling your medical family tree
HEALTH & WELLNESS
Your family medical history — also called a medical family tree or pedigree — is a record of illnesses and medical conditions affecting your family members. Similar to a family tree, a family medical history shows the relationships among members of your family, but it also includes relevant health information for each person.
Assess your risk of certain diseases
Recommend treatments or changes in diet or lifestyle habits to reduce the risk of disease
Determine which diagnostic tests to order
Determine the type and frequency of screening tests
Determine whether you or family members should get a specific genetic test
Identify a condition that might not otherwise be considered
Identify other family members who are at risk of developing a certain disease
Assess your risk of passing conditions on to your children
A family medical history can't predict your future health — it only provides information about risk. Other factors, such as your diet, weight, exercise routine and exposure to environmental factors, also will raise or lower your risk of developing certain diseases.
What's the best way to gather family medical information?
Your family may want to work together on developing your family medical history. Holidays and reunions can provide a good opportunity for you and your relatives to gather information. Not everyone, however, may be comfortable disclosing personal medical information. A number of factors may contribute to a person's reluctance to discuss medical issues, including guilt, shame and painful memories. Consider the following strategies to address these issues with your relatives:
Share your purpose. Explain that you're creating a record to help you determine whether you and your relatives have a family history of certain diseases or health conditions. Offer to make the medical history available to other family members so that they can share the information with their doctors.
Provide several ways to answer questions. Some people may be more willing to share health information in a face-to-face conversation. Others may prefer answering your questions by phone, mail or email.
Word questions carefully. Keep your questions short and to the point.
Be a good listener. As your relatives talk about their health problems, listen without judgment or comment.
Respect privacy. As you collect information about your relatives, respect their right to confidentiality. Some people may not want to share any health information with you. Or they may not want this information revealed to anyone other than you and your doctor.
What other sources of information may be beneficial?
You may want to consult family documents, such as existing family trees, baby books, old letters, obituaries or records from places of worship. Public records — birth certificates, marriage licenses and death certificates — are usually available in county record offices. If you or your family members maintain electronic personal health records, use them.
If you're adopted, ask your adoptive parents if they received any medical information about your biological parents at the time of your adoption. Adoption agencies also may have family medical information on file. If you were adopted through an open adoption process, you may be able to discuss your family's medical history directly with members of your biological family.
What information should be included in a family medical history?
If possible, your family medical history should include at least three generations. Compile information about your grandparents, parents, uncles, aunts, siblings, cousins, children, nieces, nephews and grandchildren. For each person, try to gather the following information:
Date of birth
Diseases or other medical conditions
Age when disease was diagnosed
Diet, exercise habits, smoking habits or history of weight problems
For deceased relatives, age at the time of death and cause of death
Ask about the occurrence of the following diseases and medical conditions often associated with genetic risk:
High blood pressure or high cholesterol
Alcoholism or other substance abuse
Vision or hearing loss
Miscarriage, stillbirth, birth defects or infertility
How should the information be compiled into a family tree?
Once you've gathered information about your family, create a diagram that visually depicts the relationships among family members. Record the medical information and other details about each person on your tree. If information about a disease or cause of death is unknown, don't guess at the answer. An incorrect guess can result in a poor interpretation of your medical history. Don't worry if some details are missing.
Give your doctor a copy of your family medical history and ask him or her to review it with you. Your doctor may ask you questions for clarification and can help you interpret the relevance of certain patterns in your medical history. He or she may advise you immediately regarding preventive measures you can take or screening tests you should schedule. Going forward, update your family medical history every couple of years. Be sure to share updates with your doctor.
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