Diseases That Start With J

Diseases That Start With J

Let’s delve into the world of diseases that start with J in today’s post.

The vast array of diseases that exist today make up a complicated aspect of human health and the field of medicine. Diseases can affect individuals of all ages, areas, and societies, and can lead to severe health concerns such as organ failure and premature death. They can derive from a variety of sources including infectious agents, lifestyle choices, or genetic predispositions. Diagnosis and management of diseases require the expertise of highly skilled medical professionals and innovative health technologies to improve patient outcomes.

Researching and categorizing medical conditions that start with every alphabet is a task that requires patience, diligence, and expertise. My approach was methodical, and I thoroughly scrutinized every medical term that I came across, categorizing the ailments systematically by the letter of the alphabet in which they belong.

So, let’s begin exploring this list of diseases starting with J!

22 Diseases That Start With J

And here’s the list of diseases that begin with J letter.

Jones syndrome

Jones syndrome, a rare genetic disorder, causes facial and ocular abnormalities as well as foot abnormalities, abnormal teeth, and short stature. This autosomal dominant condition is attributed to mutations in the gene for fibroblast growth factor receptor 1.

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Jacobsen syndrome

Jacobsen syndrome, also known as 11q terminal deletion disorder, is a rare chromosomal disorder that occurs when there is a deletion on the end of chromosome 11. Symptoms of Jacobsen syndrome can include intellectual disability, physical malformations, and delayed development.

Jalili syndrome

Jalili syndrome is a rare autosomal recessive genetic disorder that affects the eyes and bones. It causes visual impairment, bone abnormalities and thinning, and may cause premature joint degeneration.

Juvenile nephronophthisis

Juvenile nephronophthisis, a rare genetic disorder that affects the kidneys, is a leading cause of end-stage renal disease (ESRD) in young children and adolescents. Symptoms include excessive thirst and urination, fatigue, and high blood pressure.


Juberg syndrome, also known as juberg marsidi syndrome, is a rare disorder characterized by intellectual disability, craniofacial abnormalities, and behavioral problems.

Jumping Frenchmen of Maine

Jumping Frenchmen of Maine is a rare, but dramatic, condition that causes those affected to exhibit extreme startle reactions to various stimuli. Symptoms include uncontrollable movements and hypersensitivity to certain stimuli.

Juvenile myoclonic epilepsy

Juvenile myoclonic epilepsy is a common form of epilepsy that usually begins in adolescence or early adulthood. It causes brief movements or muscle jerks that can be mistaken for clumsiness or twitching.

Juvenile gout

Juvenile gout is a rare form of gout that affects young children and adolescents. It is characterized by painful swelling and inflammation in the joints, particularly in the lower limbs.

Job syndrome

Job syndrome, also known as hyperimmunoglobulin E syndrome, is a rare genetic disorder that causes recurrent bacterial infections, especially of the skin and lungs, as well as the abnormalities in the immune system and skeleton.

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Juvenile dermatomyositis

Juvenile dermatomyositis is a rare autoimmune disease that affects children and adolescents, causing skin rash, muscle weakness, and fatigue.

Jervell and Lange-Nielsen syndrome

Jervell and Lange-Nielsen syndrome is a rare genetic disorder characterized by hearing loss and abnormalities in the heartbeat rhythm. It can be life-threatening if not properly managed.

Joubert syndrome

Joubert syndrome is a rare genetic disorder that affects the brainstem and causes difficulty with coordination, abnormal eye movements, and intellectual disability.


Jarcho-Levin syndrome, also known as spondylothoracic dysplasia, is a rare disorder that affects the development of the spine and ribs. Symptoms include abnormal curvature of the spine, shortened ribs, and respiratory problems.


Jankovic-Rivera syndrome is a rare genetic disorder that causes intellectual disability, facial abnormalities, and issues with the nervous system, including developmental delays and seizures.


Jadassohn-Pellegrini syndrome, also known as keratosis pilaris atrophicans, is a rare genetic disorder that affects the skin. Symptoms include scarring, hyperkeratosis, and hair loss.


Jaundice is a common condition in newborns that causes the skin and whites of the eyes to appear yellow. It is caused by an excess buildup of bilirubin in the bloodstream.

Jejunal atresia

Jejunal atresia is a rare birth defect in which the small intestine is not formed properly. Symptoms include vomiting, abdominal swelling, and failure to pass stool.

Juvenile rheumatoid arthritis

Juvenile rheumatoid arthritis, also known as juvenile idiopathic arthritis, is a chronic autoimmune disorder that causes painful inflammation and stiffness in the joints, particularly in children under the age of 16.

Japanese encephalitis

Japanese encephalitis is a viral infection that is primarily spread by mosquitoes. It can cause inflammation of the brain and other severe neurological symptoms.

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Johanson-Blizzard syndrome is a rare genetic disorder that affects many parts of the body, including the brain, pancreas, and eyes. It causes intellectual disability, deafness, and other symptoms.

Jeune syndrome

Jeune syndrome, also known as asphyxiating thoracic dystrophy, is a rare genetic disorder that affects the development of the bones, causing narrow rib cage, respiratory problems, and other complications.

Juvenile hyaline fibromatosis

Juvenile hyaline fibromatosis is a rare genetic disorder that affects the skin, causing the formation of hard nodules. It can also cause joint stiffness, loss of mobility, and other complications.

Wrapping Up

And that’s our list of J diseases.

As I started compiling the list of diseases that begins with every alphabet, I realized how vast and complex the world of medical conditions is. It required meticulous research, attention to detail and an extensive database of medical terminologies to come up with a comprehensive list that covered all possible diseases for each alphabet.

In conclusion, diseases have been a part of human history and their impact has been grave. From communicable diseases that can be easily spread to chronic ailments that affect individuals for a long time, diseases have taken a toll on the health and well-being of individuals and communities across the world.

Hope this post on diseases beginning with J alphabet has been useful to you!