What should you know about pale looking skin?

Skin may look pale after cold exposure, fright, stress, illness or temporary narrowing of surface blood vessels. If the colour remains changed, examine the lips, gums, palms and eyelids as well as the face. Anaemia may present with pallor, tiredness, dizziness, headaches, breathlessness or a fast heartbeat. Iron deficiency anaemia, vitamin B12 deficiency, thalassaemia and sickle cell disease are possible medical contexts, but the appearance cannot identify which one is involved.

A new change limited to one limb has a different significance from general paleness. Pain, coolness, numbness or weakness can point to a circulation problem and should not be explained away as anaemia.

Check the colour in daylight and record when it started, whether it is constant, and what happened beforehand. Note fatigue, fever, pain, breathlessness, bleeding, dark stools, weight change or altered sensation. Arrange a medical review for persistent or recurrent pallor. Take your medicine and supplement list to the appointment; a clinician may decide that examination and blood tests are needed before treatment.

Call emergency services for pale-looking skin with collapse, chest pain, severe breathing difficulty, confusion, blue or grey lips, severe weakness or uncontrolled bleeding. Seek urgent assessment for a suddenly pale, cold, painful or numb arm or leg, particularly if movement is reduced. These red flags require action even when the underlying cause is uncertain.

Ask what your examination shows about blood flow and blood counts, whether bleeding or nutrient deficiency should be checked, whether an inherited blood condition is relevant, and which symptoms mean you should seek urgent help.