ILLNESSOPEDIA

Free Online Database Of Diseases, Illnesses & Ailments

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Here you can look through thousands of and diseases, ailments, medical conditions and illnesses. You can find the symptoms. Read about any ailment's diagnosis and find medications that can be used and the correct treatments that are needed.

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Diseases, Illnesses & Ailments Starting from Letter L


  1. Left Heart Failure
    Left heart failure is a condition wherein the left side of the heart becomes unable to pump enough blood to the different parts of the body. [read more]

  2. Leg Cramps
    A leg cramp is an involuntary, sustained tightening (contraction) of one or more of your muscles. It may result in intense pain and an inability to use the affected muscles. Leg cramps are contractions of the muscles, which is often in the back of the lower leg (calf). They usually occur just as you're falling asleep or just as you're waking up. [read more]

  3. Legg-Calve-Perthes syndrome
    Legg-Calv?-Perthes syndrome is a bone disease affecting the hip joint. The disease causes a loss of bone mass which leads to the collapse of the whole joint, deforming the ball of the femur as well as the hip socket. It is also known to others as the Perthes disease. [read more]

  4. Legionellosis
    Legionellosis is a contagious disease that causes respiratory illnesses such as pneumonia and pontiac fever. It was first described in 1976 when an outbreak occurred in a convention in Philadelphia, U.S.A. An average of 8,000 to 18,000 people in the Unites States acquire the disease each year. [read more]

  5. Legionnaires `Disease
    Legionnaires' disease is an infectious disease caused by bacteria belonging to the genus Legionella. Over 90% of legionellosis cases are caused by Legionella pneumophila, a ubiquitous aquatic organism that thrives in warm environments (25 to 45 °C with an optimum around 35 °C). [read more]

  6. Leigh disease
    Leigh disease, or Subacute Necrotizing Encephalomyelopathy (SNEM), is a rare disorder affecting the central nervous system. [read more]

  7. Leiomyoma
    Leiomyoma is a benign muscle neoplasm which may develop in any body organ but occurs mostly in the esophagus, small bowel and the uterus. [read more]

  8. Leiomyosarcoma
    Leiomyosarcoma is a rare type of cancer in which a malignant neoplasm develops in the involuntary muscles. Leiomyosarcoma is commonly detected in gastrointestinal organs such as the small intestine, retroperitoneum and the stomach. [read more]

  9. leishmaniasis
    Leishmaniasis is a kind of disease brought about by protozoan parasites under the genus Leishmania. It is formerly known as Orient Boils, Baghdad Boil, Dum-Dum fever or Leichmaniosis. [read more]

  10. Lemierre's syndrome
    Lemierre's syndrome is a rare bacterial disease that usually targets young adults. It brings about an inflammation of the internal jugular vein. A blood clot also develops in the said area during the onset of the disease. It was first described by Andre Lemierre in 1936, and the disease has produced about 160 cases for the past 100 years. [read more]

  11. Lennox-Gastaut syndrome
    The Lennox-Gastaut syndrome or LGS is a kind of epilepsy that usually occurs in children two to six years of age. It is oftentimes coupled with behavior problems and eventual mental retardation. [read more]

  12. Lentigo Simplex
    A type of color-containing (pigmented) lesion not caused by sun exposure, which looks like the freckle-like condition (lentigo) cause by sun exposure (solar lentigo) is called lentigo simplex. It can occur anywhere on the body, including areas that are not exposed to sunlight. Lentigo simplex can also occur as a single lesion even if multiple lentigos are associated with several inherited syndromes, where single lesions often develop on the lips or on the gums and may be caused by some forms of ultraviolet light therapy, therefore, the lesion may be seen as identical to those caused by exposure to sunlight. [read more]

  13. Lentigo, Solar
    A dark lesion caused by natural or artificial ultraviolet (UV) lights is called a solar lentigo (plural, solar lentigines), also known as sun-induced freckle or senile lentigo. These lentigins may be single or multiple. Indicating excessive sun exposure, a risk factor for the development of skin cancer, solar lentigines are benign and are different from a simple lentigo (lentigo simplex) because it is caused by exposure to UV light. [read more]

  14. Leprechaunism
    Leprechaunism is a rare medical disorder that exhibits elf-like features on an affected individual. Also called the Donohue syndrome, persons who suffer from Leprechaunism display distorted facial attributes such as protruberant ears, flaring nostrils and thick lips. Other physical features show enlarged reproductive organs and stunted growth. [read more]

  15. leprosy
    Leprosy is a chronic contagious skin disease that attack the peripheral nerves and mucosa of the respiratory tract. It also develops skin lesions in various parts of the body. When left untreated, the disease may cause irreverisible damages to the eyes, nerves and skin. [read more]

  16. Leptospirosis
    Leptospirosis is a bacterial disease that results to the enlargement of the spleen, nephritis and jaundice. [read more]

  17. Lesch-Nyhan syndrome
    The Lesch-Nyhan syndrome is a rare hereditary disorder which is transmitted by the mother to her male offspring. Patients with the disease suffer from sever mental and physical disabilities as well as self-mutilating behaviors all throughout life. [read more]

  18. Letterer-Siwe disease
    The Letterer-Siwe disease is a rare condition where histiocytes spread all over the body. This disease commonlt affects children below two-years of age. [read more]

  19. Leucinosis
    Leucinosis, or sometimes known as the Maple syrup urine disease (MSUD), is an autosomal recessive metabolic disorder that affects branched-chain amino acids. [read more]

  20. Leukemia
    Leukemia is a type of cancer affecting the blood or bone marrow. It induces an abnormal production of white blood cells which in hinders the proper functioning of red blood cells. [read more]



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