Got an itch to scratch? This could be why

It’s easy to identify why skin is itchy if you have a bug bite or a known allergy, but the cause isn’t always so obvious. If you have an unexplained itch, known as pruritus, see your doctor.

HORMONES

Both overactive and underactive thyroid conditions,

as well as menopause, can cause itchy skin. Your skin contains receptors for the hormone produced by your thyroid, and oestrogen plays an important role in collagen production. Changes in those hormone levels can cause changes in your skin, too.

COELIAC DISEASE

Itchy blisters, particularly on the knees, buttocks, hairline and elbows, can affect people with coeliac disease. Known as dermatitis herpetiformis, this rash is triggered when the body releases an antibody called immunoglobulin A in response to gluten.

MEDICATIONS

Itching can be a side-effect of certain medications, including antibiotics, narcotic painkillers and antifungals. Mention this to your doctor.

NEUROPATHIC ITCH

Misfiring nerves can cause itching and pain. A trapped nerve, stroke, spinal cord disease, shingles, multiple sclerosis and diabetes are some of the conditions that can trigger neuropathic itching, which isn’t satisfied by scratching.

ANAEMIA

Low iron means a reduction in the red blood cells that carry oxygen. This can lead to rashes and itching. Iron supplements can also cause itching. If this occurs, especially in conjunction with swelling in the mouth or throat, seek medical assistance.