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Home Conditions D

Health Conditions Starting With D — Research & Medical Insights

52 conditions. Research summaries and monthly AI-curated newsletters available for each.

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Deep Vein Thrombosis
Vascular Medicine

A blood clot in a deep vein, usually in the leg, raising risk of pulmonary embolism.

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Dementia
Neurology

A group of conditions causing declining memory, language, and reasoning abilities.

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Depression
Psychiatry

A mood disorder causing persistent sadness, loss of interest, and impaired function.

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Type 1 Diabetes
Endocrinology

An autoimmune disease in which the pancreas produces little or no insulin.

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Type 2 Diabetes
Endocrinology

A metabolic disorder with impaired insulin secretion and resistance, often preventable.

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Diverticulitis
Gastroenterology

Inflammation or infection of small pouches (diverticula) in the colon.

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Dacryocystitis
Ophthalmology

Infection of the tear drainage system causing pain and swelling near the inner eye.

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Dandruff
Dermatology

A common scalp condition causing flaking and mild itching, often from seborrheic dermatitis.

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Decompression Sickness
Emergency Medicine

Nitrogen bubbles in tissues from rapid ascent during diving, causing pain and neurological symptoms.

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Dehydration
Internal Medicine

A deficit of body water affecting circulation and organ function.

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Delirium
Psychiatry

Acute confusion and fluctuating attention, often reversible and triggered by illness or medication.

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Delusional Disorder
Psychiatry

Persistent false beliefs held firmly despite evidence to the contrary, without other psychotic symptoms.

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Dental Abscess
Dentistry

A pocket of pus inside the tooth or gum from bacterial infection, requiring urgent care.

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Dental Caries
Dentistry

Tooth decay from plaque bacteria producing acids that erode enamel.

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Dermatitis Herpetiformis
Dermatology

An intensely itchy blistering rash linked to celiac disease.

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Dermatomyositis
Rheumatology

An inflammatory disease causing muscle weakness and a distinctive skin rash.

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Diabetes Insipidus
Endocrinology

A disorder of water regulation causing excessive thirst and dilute urine output.

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Diabetic Ketoacidosis
Endocrinology

A life-threatening complication of diabetes with very high blood sugar and acidosis.

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Diabetic Nephropathy
Nephrology

Kidney damage from long-standing diabetes, a leading cause of kidney failure.

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Diabetic Neuropathy
Neurology

Nerve damage from chronic high blood sugar, causing numbness, pain, and weakness.

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Diabetic Retinopathy
Ophthalmology

Damage to retinal blood vessels from diabetes, a leading cause of adult blindness.

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Diaper Rash
Pediatrics

Skin irritation in the diaper area, often from moisture, friction, or yeast.

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Diarrhea
Gastroenterology

Frequent loose or watery stools, often from infection, food intolerance, or medications.

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Diffuse Large B-cell Lymphoma
Oncology

The most common aggressive non-Hodgkin lymphoma, often curable with chemotherapy.

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Diphtheria
Infectious Disease

A serious bacterial infection affecting the throat, now rare due to vaccination.

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Dislocated Shoulder
Orthopedics

The humerus bone pops out of the shoulder socket, often from trauma or sports injury.

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Dissociative Identity Disorder
Psychiatry

A rare disorder featuring two or more distinct personality states, often after severe trauma.

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Dizziness
Otolaryngology

A symptom of lightheadedness or unsteadiness with many possible causes.

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Down Syndrome
Genetics

A chromosomal condition with an extra chromosome 21, causing developmental delays and characteristic features.

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Dry Eye Syndrome
Ophthalmology

Insufficient tear production or poor tear quality causing eye discomfort.

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Dry Mouth
Dentistry

Reduced saliva production, often a side effect of medications or radiation therapy.

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Duchenne Muscular Dystrophy
Neurology

A severe inherited muscle wasting disease that almost exclusively affects boys.

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Dumping Syndrome
Gastroenterology

Rapid gastric emptying after stomach surgery causing nausea and diarrhea after eating.

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Duodenal Ulcer
Gastroenterology

An open sore in the first part of the small intestine, often from H. pylori or NSAIDs.

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Dupuytren's Contracture
Orthopedics

Progressive thickening of hand tissue that bends fingers toward the palm.

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Dwarfism
Endocrinology

Short stature from genetic or medical conditions, most commonly achondroplasia.

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Dysautonomia
Neurology

Dysfunction of the autonomic nervous system affecting blood pressure, heart rate, and digestion.

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Dysgeusia
Otolaryngology

Distorted sense of taste, often linked to infections, medications, or neurological conditions.

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Dyslexia
Psychiatry

A learning disorder affecting reading and language processing despite normal intelligence.

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Dysmenorrhea
Gynecology

Painful menstrual cramps, which may be primary or caused by underlying conditions.

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Dyspareunia
Gynecology

Pain during intercourse with physical or psychological causes.

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Dysphagia
Gastroenterology

Difficulty swallowing from structural or neurological conditions.

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Dysthymia
Psychiatry

Persistent depressive disorder — chronic low-grade depression lasting at least two years.

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Dystonia
Neurology

Involuntary sustained muscle contractions causing twisting, repetitive movements.

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Dyspnea
Pulmonology

Shortness of breath from pulmonary, cardiac, or metabolic causes.

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Diastasis Recti
Orthopedics

Separation of the rectus abdominis muscles, common after pregnancy.

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Diverticulosis
Gastroenterology

Presence of small pouches in the colon wall, usually asymptomatic until they become inflamed.

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Drug-Induced Liver Injury
Hepatology

Liver damage from medications or supplements, ranging from mild to severe.

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Ductal Carcinoma In Situ
Oncology

Earliest form of breast cancer confined to the milk ducts.

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Delayed Puberty
Endocrinology

Absence of sexual development by an age when it is expected, often with a treatable cause.

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Diabetic Foot Ulcer
Endocrinology

Open sores on the feet of diabetic patients, a major cause of amputation.

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Deafness
Otolaryngology

Profound hearing loss affecting one or both ears, congenital or acquired.

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