Conditions

Haemophilia is an inherited shortage of one of the proteins that turn a soft clot into a firm plug.

Haemophilus influenzae type b is a bacterium that lives quietly in the nose and throat of a proportion of perfectly healthy people.

The back of the thigh is made up of three muscles running from the sitting bone down to the bones of the lower leg, which means they work across two joints at…

This is one of the most ordinary childhood infections: ulcers in the mouth, spots and small blisters on the palms and soles, a modest temperature and a child…

The old name misleads on both counts: hay has nothing to do with it and there is no fever. This is an allergy to pollen.

You can bang your head almost anywhere: on ice, on a staircase, on the corner of an open cupboard door.

Head lice are insects that live on the scalp and feed on blood. They are very common in school-age children and have nothing to do with cleanliness — if…

Hearing leaves quietly. Almost nobody wakes up deaf one morning: what usually happens is that over the years the television creeps louder, you ask people to…

A heart attack happens when one of the arteries feeding the heart is blocked by a clot. The patch of muscle that depended on it is left without oxygen and…

The heartbeat does not start on its own. Each contraction begins with an electrical signal that arises in the upper chambers and travels down dedicated…