Signs and symptoms

An upward movement of the big toe, with the other toes fanning out, when the sole of the foot is stroked.

Pain felt anywhere along the back, most often in the lower back.

A rounded chest shape in which the front-to-back depth is about as large as the side-to-side width.

Bruising over the bone just behind the ear.

Three findings together: low blood pressure, distended neck veins and muffled heart sounds.

A breathing pattern of groups of quick, shallow breaths of similar depth, separated by irregular pauses with no breathing.

A mental health condition with periods of very high mood and energy (mania) and, often, periods of depression.

Blood escaping from a blood vessel, either out of the body or inside it.

A raised bubble of skin filled with clear fluid.

A feeling of fullness, tightness or swelling in the abdomen.

Abdominal pain that is worse when pressure is suddenly released than when it is applied.

A gurgling or clicking sound made by gas and fluid moving through the intestines, heard with a stethoscope.

A heart rate slower than normal; in an adult, fewer than 60 beats per minute.

Breathing that is slower than normal for the person's age.

A sudden tightening of the muscles around the airways that narrows them.

A discolored area of skin where blood has leaked from small broken vessels into the tissue underneath.

A whooshing or blowing sound heard with a stethoscope over a blood vessel.

Small white, gray or light-brown spots arranged in a ring near the outer edge of the iris.

A fatty lump on the upper back at the base of the neck, between the shoulders.

A round red rash with a lighter center and a red outer ring, so it looks like a target.

A red rash across both cheeks and the bridge of the nose, shaped like a butterfly.