St John's wort

St John's wort is a herb used as a complementary medicine, often in the treatment of depression. Find out about its uses, side effects and interactions.

Mental Health

Blood typing

Classifying blood types is particularly important when it comes to blood transfusions. The most common systems used for classifying blood are the ABO blood group system and the Rhesus (Rh) type system.

Tests & Investigations


A varicocele is a common cause of a lump in the scrotum. It is a collection of widened veins on the outside of a testicle that can affect fertility in some men. Many varicocoelse develop during puberty.

Men's Health

Insulin treatment for diabetes

There are a variety of types of insulin and ways to give it, including injections, pens and pumps. Your doctor and diabetes educator can recommend the most suitable type of insulin and delivery device for you.


Retinopathy in diabetes

Diabetic retinopathy is one of the most common complications of diabetes. People with retinopathy have damaged blood vessels in the retina (the light-sensitive layer at the back of the eyes).


Cough: dry cough

A dry cough is a cough where no phlegm or mucus is produced. Dry coughs are often caused by viral illnesses such as colds and flu, but can also be caused by allergies or throat irritants.

Respiratory Health Symptoms

Chesty coughs

When you have a chesty cough (wet, productive or phlegmy) your chest feels heavy and you may cough up mucus or phlegm. Find out what products are available for a chesty cough.

Respiratory Health

Quitting smoking

Many people are giving up smoking and feeling the benefits. Most people who finally quit have had more than one attempt.