Family History

Your family medical history is one of the most useful health records you have. Many common conditions — heart disease, diabetes, certain cancers, mental-health conditions, inherited disorders — run in families. Knowing your family history helps a Health Expert decide which tests to do earlier, which screening is needed, and which prevention is worth more effort.

What to find out

• Conditions in parents, siblings, children (first-degree relatives).
• Then grandparents, aunts, uncles, cousins (second/third-degree).
• For each condition — at what age was it diagnosed. Early-onset disease is the strongest signal of inheritance.
• Causes of death in family members.

Conditions worth mapping

• Heart disease, stroke — before 55 in men or 65 in women is significant.
• High blood pressure, cholesterol, diabetes.
• Cancers — breast, ovarian, cervical, colon, prostate, stomach, leukaemia, lymphoma; especially multiple in one family or early-onset.
• Kidney disease, thyroid, autoimmune conditions.
• Mental-health conditions — depression, bipolar, schizophrenia, anxiety, alcohol/substance use.
• Inherited blood disorders — thalassaemia, sickle cell, haemophilia. Important in certain Indian communities (Bengali, Gujarati, Sindhi, Punjabi, tribal-belt populations).
• Neurological — Parkinson's, Alzheimer's, muscular dystrophy.
• Congenital abnormalities, unexplained infant deaths.

When family history changes your medical plan

• Early screening — breast cancer mammography before 40 with strong family history; colonoscopy before 40-45.
• Genetic testing — for BRCA1/BRCA2, Lynch syndrome, familial hypercholesterolaemia, thalassaemia/sickle cell carrier, and many others.
• Preventive medicines or procedures — e.g. risk-reducing salpingo-oophorectomy in BRCA carriers; earlier statin in inherited high cholesterol.
• Specific lifestyle focus — tobacco, weight, alcohol, exercise, BP/sugar/cholesterol control.
• Reproductive decisions — preconception carrier screening, prenatal testing, IVF with preimplantation testing in specific genetic conditions (but never for sex selection — illegal under PCPNDT).

Build it once, update it annually

• Write it down as a family tree.
• Ask elders at family gatherings while you have the chance.
• Share it with every new Health Expert.
• Update as relatives are diagnosed with new conditions.
• A 30-minute conversation with older relatives can genuinely change your own healthcare and that of your children.