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

Dive into our extensive guide exploring diseases beginning with the letter ‘K’. This article will shed light on a range of conditions, from those affecting blood, bones, and eyes to mental, lung, and skin diseases.
We will also discuss illnesses in dogs and cats, covering various categories like deadly, rare, autoimmune diseases, and bacterial infections. Join us in unfolding the mysteries of these diverse medical conditions.

Top 30 Diseases that Start with K

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

  • Kawasaki Disease: Inflammatory condition in children
  • Keratoconus: Progressive eye disorder
  • Klinefelter Syndrome: Genetic male condition
  • Kaposi Sarcoma: Cancer caused by herpesvirus
  • Kidney Stones: Hard mineral deposits in kidneys
  • Knee Osteoarthritis: Degeneration of knee joints
  • Kyphosis: Abnormal spinal curvature
  • Keratitis: Inflammation of the cornea
  • Krabbe Disease: Rare genetic disorder
  • Keratosis Pilaris: Skin condition with rough patches
  • Klumpke’s Palsy: Brachial plexus injury
  • Kennel Cough in Dogs: Highly contagious respiratory disease
  • Kaposi’s Varicelliform Eruption: Skin complication from viral infection
  • Keratoderma: Thickening of the skin
  • Keloids: Raised scar after injury

Also, Check:

Medical Terms That Start With K

Fitness Words That Start With K

Rare Diseases That Start With K

  • Krabbe Disease
  • Kallmann Syndrome
  • Klippel-Feil Syndrome
  • Klippel-Trenaunay Syndrome
  • Kawasaki Disease (rare complications)
  • Kabuki Syndrome
  • Kniest Dysplasia
  • Kartagener Syndrome
  • Kearns-Sayre Syndrome
  • Kimura’s Disease
  • Kugelberg-Welander Disease
  • Kufor-Rakeb Syndrome
  • Kikuchi Disease
  • Knobloch Syndrome
  • Kallikrein Hypertension

Next, we delve into deadly diseases starting with ‘K’, offering insights into their severity and impact.

Deadly Diseases That Start With K

  • Kawasaki Disease (with heart complications)
  • Kaposi Sarcoma
  • Kidney Cancer
  • Kuru
  • Kidney Failure
  • Kleine-Levin Syndrome (rare complications)
  • Kikuchi Disease (in severe cases)
  • Krabbe Disease
  • Kyasanur Forest Disease
  • Kaposi’s Varicelliform Eruption (severe cases)
  • Kartagener Syndrome (severe complications)
  • Kearns-Sayre Syndrome (severe complications)
  • Kimura’s Disease (rare complications)
  • Kugelberg-Welander Disease (advanced stages)
  • Klippel-Trenaunay Syndrome (severe complications)

Explore More Diseases Starting With:


Continuing our exploration, we will now look into other diseases starting with ‘K’, categorized by the affected body part or system.

Other Diseases Beginning With K (Divided By Type)

Autoimmune Diseases That Start With K

  • Kawasaki Disease: A condition that causes inflammation in the walls of medium-sized arteries throughout the body, primarily affecting children.

Blood Diseases That Start With K

  • Kostmann Syndrome: A rare congenital disorder characterized by severe neutropenia, leading to recurrent infections.

Bone Diseases That Start With K

  • Klippel-Feil Syndrome: A congenital condition characterized by the fusion of any two of the cervical vertebrae.
  • Klinefelter Syndrome (bone effects): Primarily a genetic disorder in males; can affect bone density and strength due to hormonal imbalances.
  • Klippel-Trenaunay Syndrome: A rare congenital medical condition involving blood vessels, soft tissue, and bone growth abnormalities.
  • Kniest Dysplasia: A rare genetic disorder affecting bone and cartilage development, leading to skeletal abnormalities.

Eye Diseases That Start With K

  • Keratoconus: A progressive eye disease in which the normally round cornea thins and begins to bulge into a cone-like shape.
  • Keratitis: Inflammation of the cornea, often caused by infection or injury.
  • Kearns-Sayre Syndrome (eye effects): A mitochondrial disorder that primarily affects the eyes and areas of the brain controlling eye movement.

Lung Diseases That Start With K

  • Kartagener Syndrome: A rare genetic disorder characterized by a reversal of the internal organs’ position and chronic respiratory problems.

Heart Diseases That Start With K

  • Kawasaki Disease (heart complications): In severe cases, it can lead to complications like coronary artery aneurysms.

Mental Diseases That Start With K

  • Kleine-Levin Syndrome: A rare sleep disorder characterized by recurring periods of excessive sleep and altered behavior.
  • Korsakoff Syndrome: A chronic memory disorder caused by severe deficiency of thiamine (vitamin B1), often associated with alcohol abuse.

Skin Diseases That Start With K

  • Keloids: Overgrowth of scar tissue at the site of a healed skin injury.
  • Keratosis Pilaris: A common skin condition that causes rough patches and small, acne-like bumps.
  • Keratoderma: A group of diseases characterized by thickening of the skin, particularly on the palms and soles.
  • Kaposi Sarcoma: A type of cancer that develops from the cells that line lymph or blood vessels; associated with human herpesvirus 8 (HHV8).

Bacterial Infections That Start With K

  • Klebsiella Infections: Infections are caused by Klebsiella bacteria, often affecting the lungs (pneumonia), bloodstream, and urinary tract.

This list provides a comprehensive overview of diseases starting with ‘K’, covering various categories. While some categories have a limited number of diseases beginning with ‘K’, the list aims to be factual and relevant, focusing on actual medical conditions.

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