Diseases & Health Conditions
Educational information about diseases, symptoms, and related treatments
Lactose intolerance
Lactose intolerance is a common digestive problem. Your body finds it hard to digest lactose, a type...
Laryngeal (larynx) cancer
The larynx is also called the voice box. It sits in the neck, above the windpipe (trachea) and in fr...
Laryngitis
Laryngitis means the voice box (larynx) has become inflamed. The good news is that it usually settle...
Late miscarriage
A late miscarriage is one that happens after 12 weeks but before 24 weeks of pregnancy. You can als...
Lead poisoning
Lead poisoning happens when lead gets into the body and starts to cause harm. This can happen if lea...
Learning disability
A learning disability is a serious, lifelong condition that affects how a person develops. If you ha...
Leg cramps
Leg cramps are common, and in most cases they're nothing to worry about. What happens is that a musc...
Legionnaires’ disease
Legionnaires' disease is a serious type of pneumonia (lung infection) caused by Legionella bacteria....
Lichen planus
Lichen planus is an itchy rash that can show up on many parts of the body, including inside the mout...
Limb girdle muscular dystrophy
Limb girdle muscular dystrophies (LGMD) are rare conditions. They can look quite different from pers...
Liver cancer
What is liver cancer? Liver cancer is cancer that starts in the liver itself. Doctors sometimes cal...
Liver disease
There are more than 100 different types of liver disease, and together they affect at least 2 millio...
Living with dysfibrinogenemia
Dysfibrinogenemia is a rare bleeding disorder that runs in families. Kimberley's story Kimberley wa...
Living with sickle cell anaemia
Sickle cell disease is the name for a group of blood disorders. The most severe of them is sickle ce...
Living with vasculitis
Vasculitis is a group of rare conditions that cause inflammation in the blood vessels. Nicola's sto...
Loss of libido
Loss of libido, or a low sex drive, is common. Up to 1 in 5 men will have it at some point in their...
Low blood pressure
Low blood pressure means the pressure of blood in your arteries the vessels that carry blood from th...
Lung cancer
Cancer that begins in the lung is known as primary lung cancer. The lungs are the organs you use to...
Lupus
Lupus is a complicated condition that is still poorly understood. It can affect many parts of the bo...
Lyme disease
Lyme disease is a bacterial infection that spreads to people through infected ticks. It is also call...
Lymphoedema
Lymphoedema is a long-term condition where the body's tissues become swollen. It can affect any part...
Lymphogranuloma venereum (LGV)
Lymphogranuloma venereum (LGV) is a sexually transmitted infection. It's caused by a strain of chlam...
Malaria
About malaria Malaria is a serious tropical illness spread by mosquito bites. Just one bite is enoug...
Malnutrition
Malnutrition means poor nutrition. It usually happens because you don't eat enough food (undernutrit...