All Diseases that Start with X (Rare, Deadly, and Many More!)

As we continue our comprehensive journey through the health alphabet, we arrive at the letter ‘X’. This section focuses on diseases that start with ‘X’, a letter less common in medical terminology but still significant.

We aim to highlight a variety of conditions, encompassing rare, deadly, blood, bone, mental health, autoimmune, and bacterial infections associated with ‘X’.

Top 30 Diseases that Start with X

Below are the 30 common diseases starting with the letter ‘X’.

  • Xerostomia: Dry mouth due to reduced saliva.
  • Xerophthalmia: Dry eye syndrome.
  • X-linked Agammaglobulinemia: Genetic immune system disorder.
  • Xanthelasma: Yellowish patches on eyelids.
  • X-linked Adrenoleukodystrophy: Genetic disorder affecting the adrenal gland and white matter.
  • Xanthoma: Fatty growths under the skin.
  • Xeroderma Pigmentosum: Genetic disorder causing extreme sensitivity to UV light.
  • Xanthogranulomatous Pyelonephritis: Chronic kidney disorder.
  • X-linked Ichthyosis: Genetic skin disorder.
  • Xiphoid Syndrome: Painful condition affecting the xiphoid process.
  • Xeroderma: Abnormal dryness of the skin.
  • Xylophobia: Irrational fear of wooden objects.
  • Xanthinuria: Rare metabolic disorder.
  • Xanthoma Diabeticorum: Skin condition associated with diabetes.
  • Xerotic Eczema: Severe dry skin leading to eczema.
  • Xanthopsia: Visual condition where things appear yellow.
  • X-linked Hypophosphatemia: Genetic disorder affecting phosphate levels.
  • Xerosis Cutis: Extremely dry skin.
  • Xiphodynia: Pain in the xiphoid process area.
  • Xanthoma Disseminatum: Skin condition with yellowish nodules.
  • X-linked Lymphoproliferative Syndrome: Immune system disorder.
  • Xylophagia: Compulsion to eat wood.
  • Xenophobia: Severe fear or dislike of foreigners or strangers.
  • Xerophthalmia and Night Blindness: Vitamin A deficiency leading to eye problems.
  • Xanthine Oxidase Deficiency: Enzyme deficiency causing health issues.
  • X-linked Hyper IgM Syndrome: Immune system disorder.
  • Xenotropic Murine Leukemia Virus-Related Virus (XMRV): Virus linked to prostate cancer and chronic fatigue.
  • Xanthogranulomatous Cholecystitis: Rare form of gallbladder inflammation.
  • Xerocytosis: Abnormal red blood cell condition.
  • Xiphias Gladius Injury: Injuries caused by swordfish.

Rare Diseases That Start With X

  • X-linked Agammaglobulinemia: Immune deficiency disease.
  • Xeroderma Pigmentosum: Extreme sensitivity to sunlight.
  • X-linked Adrenoleukodystrophy: Genetic disorder affecting the adrenal gland and brain.
  • X-linked Ichthyosis: Rare skin disorder.
  • Xanthinuria: Rare metabolic disorder.

Deadly Diseases That Start With X

  • X-linked Adrenoleukodystrophy: This can be fatal, affecting the brain and adrenal gland.
  • Xeroderma Pigmentosum: High risk of skin cancer.
  • X-linked Agammaglobulinemia: Severe immune deficiency can be life-threatening.
  • Xenotropic Murine Leukemia Virus-Related Virus (XMRV): Linked to serious diseases like cancer.
  • Xerocytosis: This can lead to severe anemia and other complications.

Also, Check:

Medical Terms That Start With X

Fitness Words That Start With X

Other Diseases Beginning With X (Divided By Type)

Exploring diseases that start with the less common letter ‘X,’ we categorize them by type for a comprehensive understanding and effective management.

Autoimmune Diseases That Start With X

  • X-linked Agammaglobulinemia: Genetic disorder affecting the immune system.
  • Xeroderma Pigmentosum: Inherited condition causing extreme sensitivity to sunlight.
  • X-linked Lymphoproliferative Disease: Immune system disorder affecting males.
  • X-linked Hyper IgM Syndrome: Rare immune disorder affecting antibody production.
  • Xerophthalmia: Dryness of the eye membranes, often immune-related.

Blood Diseases That Start With X

  • X-linked Sideroblastic Anemia: Genetic disorder affecting red blood cell production.
  • Xanthoma: Condition involving fatty deposits in vessels.
  • X-linked Thrombocytopenia: Genetic disorder causing low platelet count.
  • X-linked Polycythemia: Rare condition with increased red blood cells.
  • Xanthogranulomatous Pyelonephritis: Chronic kidney disorder.

Bone Diseases That Start With X

  • X-linked Hypophosphatemia: Genetic disorder affecting bone growth.
  • Xiphodynia: Painful syndrome involving the xiphoid process of the sternum.
  • X-linked Osteoporosis: Rare form of osteoporosis linked to X chromosome.
  • X-linked Chondrodysplasia Punctata: Rare skeletal disorder.
  • Xanthoma of Bone: Fatty deposits causing bone lesions.

Bacterial Infection That Start With X

  • XDR Tuberculosis (Extensively Drug-Resistant TB): A highly resistant form of tuberculosis.
  • Xylohypha Trichoides Infection: Rare fungal infection that can mimic bacterial diseases.

Explore More Diseases Starting With:


Animal Diseases That Start With X

The letter ‘X’ is quite rare at the beginning of disease names, both in humans and animals. However, a few notable animal diseases starting with ‘X’ are recognized in veterinary medicine.

  • Xenotransplantation-related Diseases: Diseases from animal organ transplant into another species.
  • X-Linked Myotubular Myopathy: Genetic disorder in Labrador Retrievers.
  • X-Disease in Cattle: Also known as Bovine Ephemeral Fever.
  • Xanthomatosis: Condition in birds characterized by lipid deposits.
  • Xenopus Fungal Disease: Affects Xenopus species of frogs.

diseases that start with x