Diseases & Health Conditions
Educational information about diseases, symptoms, and related treatments
Greater trochanteric pain syndrome
This information can help those who have already been diagnosed with greater trochanteric pain syndr...
Gum disease
Gum disease is a common problem where the gums bleed and become swollen, sore or infected. Many adul...
Hand, foot and mouth disease
Hand, foot and mouth disease is a common illness in children, though adults can get it too. It cause...
Hay fever
Hay fever is a common allergic condition. You get the symptoms when your body reacts allergically to...
Head and neck cancer
What is head and neck cancer? Head and neck cancer is a general term for a group of different cance...
Head lice and nits
Head lice are tiny insects that live in the hair, and nits are the small, empty egg cases left stuck...
Headaches
Most headaches are not serious. In many cases, you can treat a headache at home.
Hearing loss
Hearing loss is a common problem. It often develops with age, or it comes from being exposed to loud...
Heart attack
What is a heart attack? A heart attack happens when the blood supply to part of the heart muscle is...
Heart block
Electrical signals control the heartbeat. Heart block happens when these signals get interrupted.
Heart disease
Heart disease is not one illness. It covers a range of conditions that affect the heart, and they fa...
Heart failure
Heart failure is a condition where your heart cannot pump blood around your body as well as it shoul...
Heart palpitations
Palpitation means you become aware of your own heartbeat. Your heart may feel like it's pounding, fl...
Heatstroke and heat illness
Heatstroke and other heat illnesses happen in hot conditions, whether indoors or outdoors, often fro...
Hepatitis A
Hepatitis A is a liver infection spread through an infected person's stool. The risk of catching it...
Hepatitis B
Hepatitis B is a liver infection spread through blood and body fluids. In the UK, the chance of catc...
Hepatitis C
Hepatitis C is a liver infection spread through blood. It can be cured with treatment. But if left...
Hiatus hernia
About hiatus hernia A hiatus hernia (also called a hiatal hernia) happens when part of the stomach p...
High blood pressure (hypertension)
Blood pressure is the force of blood pushing against the artery walls. Arteries are the vessels that...
High cholesterol
Cholesterol is a fatty substance. Your liver makes it, and some of the food you eat contains it too....
Hip problems in children and young people
Since this hip problem may be new to your child, this information should help you understand what's...
HIV
HIV is a long-term health condition that today is very manageable. HIV stands for human immunodefici...
Hives
The main symptom of hives (urticaria) is a rash. The rash may: - be raised - be very itchy - be on...
Hodgkin lymphoma
Hodgkin lymphoma is a type of blood cancer. It starts when blood cells called lymphocytes become abn...