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Family History

What runs in your family changes what we screen for.

Why this matters

One of the strongest signals we have

Your family history shapes which screenings, tests, and prevention strategies matter most for you. Diabetes, high blood pressure, high cholesterol, heart disease, kidney disease, stroke, and many cancers all cluster in families. Knowing what's in yours helps your team start screening earlier — or watch for the early warning signs that might otherwise get missed.

The most useful family history focuses on first-degree relatives: parents, siblings, and children. For each, write down significant conditions and the approximate age at diagnosis. "Father — heart attack age 47" is far more useful than "father had heart trouble." Age at onset matters because it changes how aggressively your team will screen and counsel you.

What to focus on

Conditions that often run in families

You don't need to capture everything — focus on conditions that matter for screening, prevention, or risk-stratification. The categories below are the most useful starting points.

Cardiovascular

  • Heart attack or angina
  • Sudden cardiac death
  • High blood pressure
  • High cholesterol
  • Stroke or blood clots

Metabolic & kidney

  • Diabetes (type 1 or 2)
  • Kidney disease or dialysis
  • Polycystic kidney disease
  • Thyroid disease

Cancers

  • Breast, ovarian, prostate
  • Colon & rectal
  • Lung
  • Pancreatic
  • Melanoma or other skin

Mental health

  • Depression
  • Anxiety
  • Bipolar disorder
  • Schizophrenia
  • Substance use disorder

Neurological

  • Alzheimer's or dementia
  • Parkinson's disease
  • Seizure disorder
  • Multiple sclerosis

Other

  • Asthma or severe allergies
  • Autoimmune disease
  • Pregnancy losses, stillbirths
  • Birth defects
  • Bleeding/clotting disorders
Worked example

How it might look

Here's a sample family history. Notice the dates — and the way patterns start to show.

Parents
RelationAge (or at death)Significant conditions & age at diagnosis
FatherDied at 62Heart attack age 47, then bypass surgery age 55. High cholesterol. Smoker.
Mother78, livingType 2 diabetes diagnosed in her 50s. Hypertension. Hypothyroid after age 60.

Siblings

RelationAgeSignificant conditions
Sister (older)58, livingBreast cancer at age 42 — BRCA1 positive on testing. Underwent prophylactic surgery.
Brother (younger)52, livingHypertension. Otherwise healthy.

Children

RelationAgeSignificant conditions
Daughter28, livingNone known. Started annual breast screening at 30 due to maternal-aunt history.
Son25, livingNone known.

The pattern here — early MI in father, BRCA-positive breast cancer in sister, diabetes in mother — changes the screening recommendations for everyone in the family. Without the sheet, those connections are easy to miss.

My Family History

Northern Nephrology & Hypertension Patient Personal Health Record

Parents

Mother & father. Note adoption if relevant.
Relation Age (or at death) Conditions & age at diagnosis

Siblings

Brothers & sisters, full or half
Relation Age (or at death) Conditions & age at diagnosis

Children

If applicable
Relation Age Conditions & age at diagnosis

Notes & patterns

Grandparents, aunts/uncles, cousins, genetic testing, patterns you've noticed
Common mistakes to avoid

Where these sheets fall short

Vague ages ("older" or "in her 60s") Specific ages matter. "Mother had a heart attack at 52" is very different from "Mother had a heart attack at 78." Approximate is fine — guess if you have to.
Skipping living relatives with no diagnoses A healthy 75-year-old parent is itself important information. List them with "no significant conditions."
Missing maternal vs paternal for cancers For breast, ovarian, prostate, and pancreatic cancers, which side of the family matters — it changes the genetic risk calculation. Use the notes field to capture aunts/uncles/grandparents on each side.
Not updating after big news A new diagnosis in a parent or sibling can change YOUR screening plan. Update the sheet within a few months of any significant family news.

Your family's story is part of your medical story

Bring this sheet to every new provider. Update it when something changes. Make sure your kids have a copy.

Take Charge of Your Health!

Family, Social and Occupational History Sheet:

A very important part of your history!

Family History

The family history is very important, not only in helping in diagnosis, but in making recommendations for preventive health care. The family history should focus on your parents and siblings. Family history of diabetes, high blood pressure, high cholesterol, heart disease, kidney disease, strokes or Cancer are extremely important to document.

List each family member and right down any significant health condition and approximate age. For example: "Father - heart attack age 47" or "Mother - diabetes - onset in her 50's."

These are some disease states that can run in families:
Alzheimer’s disease or dementia Arthritis Asthma Birth defects Cancer (breast, colon, lung, prostate, ovarian, and other cancers) Diabetes Depression Heart disease or sudden heart attack Other heart problems High blood pressure and high cholesterol Pregnancy losses, stillbirths, and miscarriages Stroke or blood clots

Social History

the social history is where you describe any social habits that could have either a negative or positive impact on your health. Smoking, alcohol consumption and caffeine may have negative impacts. Regular exercise, plant based diet, low fat and low sodium diet have positive impacts and should be listed. Illicit drug use or any high risk activities (IV drug use, tatoos, multiple sex partners) can be listed here as well.

Occupational History

The occupational history can be important in terms of job stress, degree of activity and exposure to toxic chemicals or other hazards. Examples include lung disease secondary to inhaled dusts, irritant gases or toxic fumes in a workplace.

Problem Sheet

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Medication Sheet

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Immunization Sheet

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Family History

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Social & Occupational
History

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Tracking Symptoms
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