Informational only — Not medical advice. Always consult a licensed healthcare provider.

Diseases & Health Conditions

Educational information about diseases, symptoms, and related treatments

nutritional

Lactose intolerance

Overview - About lactose intolerance - Causes of lactose intolerance - Diagnosing lactose intoleranc...

0 symptoms 0 medicines
cancer

Laryngeal (larynx) cancer

Overview - What is laryngeal cancer? - Symptoms of laryngeal cancer - Risk factors and causes of lar...

0 symptoms 0 medicines
ears-nose-and-throat

Laryngitis

Overview Laryngitis is inflammation of the larynx (voice box). In most cases, it gets better without...

11 symptoms 0 medicines
pregnancy-and-childbirth

Late miscarriage

Overview A late miscarriage happens after 12 weeks and before 24 weeks. Read more about early miscar...

4 symptoms 0 medicines
infections-and-poisoning

Lead poisoning

Overview Lead poisoning is caused by exposure to lead, which can be harmful to health if it enters t...

13 symptoms 0 medicines
a-to-z

Learning disability

Overview A learning disability is a significant life-long condition which affects development. If yo...

0 symptoms 0 medicines
muscle-bone-and-joints

Leg cramps

Overview Leg cramps are a common and usually harmless condition. They cause the muscles in your leg...

0 symptoms 0 medicines
lungs-and-airways

Legionnaires’ disease

Overview Legionnaires’ disease is a severe form of pneumonia. It’s caused by Legionella bacteria. In...

5 symptoms 0 medicines
skin

Lichen planus

Overview Lichen planus is an itchy rash that can affect many areas of the body, including the inside...

0 symptoms 0 medicines
brain-nerves-and-spinal-cord

Limb girdle muscular dystrophy

Overview Limb girdle muscular dystrophies (LGMD) are rare conditions. They present differently in ev...

6 symptoms 0 medicines
cancer

Liver cancer

Overview - What is liver cancer? - Symptoms of liver cancer - What causes liver cancer? - Diagnosing...

5 symptoms 0 medicines
stomach-liver-and-gastrointestinal-tract

Liver disease

Overview There are more than 100 different types of liver disease, which together affect at least 2...

0 symptoms 0 medicines
rare-conditions

Living with dysfibrinogenemia

Overview Dysfibrinogenemia is a rare inherited bleeding disorder. Kimberley’s story Kimberley was d...

0 symptoms 0 medicines
rare-conditions

Living with sickle cell anaemia

Overview Sickle cell disease is the name for a group of blood disorders. The most severe is sickle c...

0 symptoms 0 medicines
rare-conditions

Living with vasculitis

Overview Vasculitis is a group of rare conditions that cause inflammation in the blood vessels. Nic...

0 symptoms 0 medicines
sexual-and-reproductive

Loss of libido

Overview Loss of libido (sex drive) is a common problem affecting up to 1 in 5 men – and even more w...

0 symptoms 0 medicines
a-to-z

Low blood pressure

Overview Blood pressure is the pressure of blood in the arteries. The arteries are vessels that carr...

6 symptoms 0 medicines
cancer

Lung cancer

Overview Cancer that starts in the lung is called primary lung cancer. The lungs are the parts of th...

9 symptoms 0 medicines
immune-system

Lupus

Overview - About lupus - Symptoms of lupus - Causes of lupus - Diagnosing lupus - Treating lupus - C...

16 symptoms 0 medicines
infections-and-poisoning

Lyme disease

Overview Lyme disease is a bacterial infection spread to humans by infected ticks. It’s also known a...

13 symptoms 0 medicines
blood-and-lymph

Lymphoedema

Overview Lymphoedema is a long-term condition that causes swelling in the body’s tissues. It can aff...

7 symptoms 0 medicines
sexual-and-reproductive

Lymphogranuloma venereum (LGV)

Overview British Sign Language (BSL) | 简体中文 | Polski | Română | slovenčina Lymphogranuloma vener...

6 symptoms 0 medicines
infections-and-poisoning

Malaria

Overview - About malaria - Preventing and treating malaria About malaria Malaria is a serious tropi...

6 symptoms 0 medicines
nutritional

Malnutrition

Overview Malnutrition means poor nutrition. This is normally caused by not eating enough (undernutri...

11 symptoms 0 medicines