Here are seven important “silent” conditions that often have few or no early symptoms:
- High Blood Pressure (Hypertension)
- Why it’s called silent: Most people feel completely normal.
- Possible warning signs (if they occur):
- Headaches
- Blurred vision
- Nosebleeds (uncommon)
- Risks if untreated:
- Heart attack
- Stroke
- Kidney damage
- Heart failure
- Prevention: Regular blood pressure checks, exercise, healthy diet, limiting salt, maintaining a healthy weight, and taking prescribed medication if needed.
- Type 2 Diabetes
- Early symptoms may include:
- Increased thirst
- Frequent urination
- Fatigue
- Blurred vision
- Slow-healing wounds
- Complications:
- Kidney disease
- Nerve damage
- Blindness
- Heart disease
- Detection: Blood sugar tests such as fasting glucose or HbA1c.
- Early symptoms may include:
- Chronic Kidney Disease
- Often silent until advanced stages.
- Later symptoms:
- Swollen feet or ankles
- Fatigue
- Nausea
- Loss of appetite
- Itchy skin
- Risk factors: Diabetes, high blood pressure, family history.
- Detection: Blood and urine tests.
- Liver Disease
- Early stages may cause no symptoms.
- Later signs:
- Yellowing of the skin or eyes (jaundice)
- Swollen abdomen
- Easy bruising
- Confusion
- Severe fatigue
- Causes: Alcohol misuse, viral hepatitis, fatty liver disease.
- Coronary Artery Disease
- Can progress silently for years.
- Possible symptoms before a heart attack:
- Chest discomfort
- Shortness of breath
- Fatigue during activity
- Risk factors: Smoking, diabetes, high blood pressure, high cholesterol.
- Cancer
- Many cancers produce no symptoms in early stages.
- Possible warning signs include:
- Unexplained weight loss
- Persistent fatigue
- Blood in stool or urine
- Persistent cough
- New lumps
- Changes in bowel habits
- Screening can detect some cancers before symptoms develop.
- Abdominal Aortic Aneurysm
- Often causes no symptoms until it becomes large or ruptures.
- Possible warning signs:
- Pulsating sensation in the abdomen
- Persistent abdominal or back pain
- A rupture is a medical emergency and can be fatal without immediate treatment.
Symptoms that may suggest someone is approaching the end of life
In people with a known serious illness, the following changes can sometimes occur in the final weeks or months:
- Increasing weakness and sleeping much more
- Loss of appetite and weight
- Difficulty breathing
- Confusion or reduced alertness
- Reduced urine output
- Difficulty swallowing
These changes do not necessarily mean death will occur within a year, and they should be assessed in the context of the person’s overall health.
When to seek urgent medical care
Seek emergency medical attention immediately for:
- Severe chest pain
- Sudden weakness or trouble speaking
- Difficulty breathing
- Loss of consciousness
- Heavy bleeding
- Sudden, severe abdominal pain
Regular checkups, recommended screening tests, and prompt evaluation of new or persistent symptoms are the best ways to detect many of these conditions early, when treatment is often most effective.