Health Conditions Starting With H — Research & Medical Insights

The heart cannot pump enough blood to meet the body's needs.

A viral liver infection spread through blood and body fluids; vaccine-preventable.

A blood-borne viral liver infection; now curable with direct-acting antivirals.

Hypertension — persistently elevated blood pressure that strains the heart and vessels.

Human immunodeficiency virus attacking the immune system; manageable with antiretrovirals.

Underactive thyroid gland causing fatigue, weight gain, and metabolic slowdown.

A viral infection causing oral or genital sores; managed but not cured with antivirals.

Alopecia — thinning or loss of scalp or body hair from many possible causes.

Chronic bad breath, often from oral bacteria, dry mouth, or GI conditions.

A toe deformity with abnormal bending at the middle joint.

A contagious viral illness causing sores and rashes in young children.

An autoimmune disorder attacking the thyroid, a common cause of hypothyroidism.

Seasonal allergic reaction to airborne allergens causing sneezing, congestion, and itchy eyes.

A group of cancers arising in the throat, mouth, nose, or salivary glands.

Pain in the head, face, or upper neck from many possible causes.

Partial or total inability to hear, affecting one or both ears.

A burning chest sensation from stomach acid refluxing into the esophagus.

Heat-related illness with heavy sweating, weakness, and nausea.

A life-threatening condition with body temperature above 104°F and neurological symptoms.

Pain in the back or bottom of the heel, often from plantar fasciitis or Achilles issues.

A common bacterial stomach infection linked to ulcers and gastric cancer.

A hereditary disorder causing excessive iron absorption and organ damage.

Anemia from premature destruction of red blood cells.

An inherited bleeding disorder from clotting factor deficiency.

Swollen veins in the rectum or anus causing bleeding, itching, and discomfort.

Blood accumulating in the pleural cavity, usually from chest trauma.

A small-vessel vasculitis causing rash, joint pain, and kidney involvement.

Confusion and altered consciousness from liver failure allowing toxins to accumulate.

A vaccine-preventable viral liver infection spread mainly through contaminated food or water.

A rare liver cancer that most commonly affects young children.

The most common primary liver cancer, often following chronic viral hepatitis or cirrhosis.

Protrusion of an organ through a weak spot in the muscular wall.

A disc between vertebrae bulges out, often pressing on spinal nerves.

Shingles — a painful rash from reactivation of the chickenpox virus.

The upper stomach pushes through the diaphragm, often causing reflux symptoms.

Chronic painful nodules and abscesses in areas where skin rubs together.

Elevated blood cholesterol levels increasing cardiovascular disease risk.

A congenital condition in which nerve cells are missing from the colon, causing obstruction.

Excess coarse body hair in women in a male-pattern distribution, often from elevated androgens.

A fungal infection from inhaled soil spores, mainly affecting the lungs.

Urticaria — itchy raised welts on the skin, often allergic in origin.

A type of lymphoma with distinctive Reed-Sternberg cells, highly curable.

Parasitic infection causing iron deficiency anemia, acquired through skin contact with contaminated soil.

Human papillomavirus — a sexually transmitted infection with many strains, some cancer-causing.

An inherited neurodegenerative disease causing movement, cognitive, and psychiatric symptoms.

Buildup of cerebrospinal fluid in the brain, often treated with a shunt.

Excess aldosterone causing high blood pressure and low potassium.

Elevated blood calcium levels, most often from hyperparathyroidism or cancer.

Severe nausea and vomiting in pregnancy leading to dehydration and weight loss.

Excessive sweating beyond what is needed for temperature regulation.

Elevated blood potassium levels that can cause dangerous heart rhythm changes.

Elevated blood lipids including cholesterol and triglycerides.

High blood sodium, usually from water loss or inadequate intake.

Overactive parathyroid glands causing high calcium levels and bone weakening.

Overactive thyroid producing too much hormone, causing weight loss and rapid heartbeat.

A genetic heart condition with thickened walls that can cause sudden cardiac death.

Rapid breathing causing lightheadedness, tingling, and chest tightness, often from anxiety.

Blood accumulation in the front chamber of the eye, usually from trauma.

Low blood calcium causing muscle cramps, numbness, and heart rhythm changes.

Low blood sugar causing shakiness, confusion, and risk of coma.

Low blood potassium causing muscle weakness and heart rhythm disturbances.

Low blood sodium causing confusion, seizures, or coma if severe.

Underactive parathyroid glands causing low calcium levels.

Deficient production of one or more pituitary hormones, with multi-organ effects.

Dangerously low body temperature from prolonged cold exposure.

Low oxygen levels in tissues, with many respiratory and circulatory causes.

A group of rare disorders in which immune cells accumulate in tissues.

A life-threatening diabetes complication with extreme high blood sugar and dehydration.

Excessive daytime sleepiness despite adequate nighttime sleep.

A stroke caused by bleeding in the brain rather than a clot.

Elevated prolactin levels causing menstrual irregularities, infertility, and lactation.

A raised, thickened scar that remains within the original wound borders.