Our skin is actually our largest organ.
It protects us from infection, helps regulate body temperature, supports our immune system, and even produces vitamin D. But beyond these important roles, our skin can also provide valuable clues about what is happening inside our bodies.
Rather than simply viewing skin problems as something to cover up or suppress, it is worth asking what our skin might be trying to tell us.
While not every skin condition reflects an internal illness, persistent or recurring skin changes can sometimes be the body’s early warning system.
Some skin conditions that might need attention are:
- Dry skin
- Acne
- Persistent redness
- Itching without a rash
- Changes in skin colour
- Slow wound healing
Dry Skin
Dry, flaky skin may simply result from cold weather or frequent washing, but persistent dryness can also point to, dehydration, essential fatty acid deficiency, low intake of vitamins A and E, thyroid dysfunction, diabetes or age-related changes in skin barrier function.
Supporting hydration, healthy fats, and investigating underlying medical conditions may be more effective than relying on moisturisers alone.
Acne
Acne is often thought of as a teenage problem, yet many adults struggle with it. Possible contributors include hormonal fluctuations, high-glycaemic diets, chronic stress, poor sleep, certain medications and in some people, consumption of dairy products.
Stress increases cortisol, which can stimulate oil production and worsen inflammation, illustrating how emotional health and skin health are closely connected.
Persistent redness
Rosacea or ongoing facial redness may be associated with increased skin sensitivity, inflammation, alcohol intake, sensitivity to spicy foods, heat exposure or emotional stress
Rosacea can also be an indicator of alterations in the gut microbiome or a deficiency of stomach acid.
Itching without a rash
Persistent itching can occasionally signal more than a skin problem. Possible causes include liver or kidney disease, iron deficiency or thyroid disorders. It could also be due to side effects from certain medications
When itching persists without an obvious cause, it deserves medical evaluation.
Changes in skin colour
Yellowing of the skin may indicate liver or gallbladder problems.
Bluish lips or fingertips may suggest inadequate oxygenation.
Unusual darkening of skin folds can sometimes be associated with insulin resistance.
Pale skin may reflect anaemia.
Our skin often provides visible clues before we notice other symptoms.
The focus of this discussion has not been about skin cancers, but some of the signs mentioned above can also be indicators of degenerative changes in the skin. If you have noticed any changes on your skin it is always best to have a doctor or dermatologist take a look to make sure there is nothing that needs more specific medical attention.
Slow wound healing
Healing requires adequate nutrition and healthy blood flow. Cuts and scratches that heal slowly may indicate diabetes, poor circulation, nutritional deficiencies, particularly protein, vitamin C and zinc or impaired immune function. Smoking can also cause slower wound healing.
What shows up on our skin can be an indicator of an unhealthy digestive system.
Imbalances in the gut bacteria or intestinal permeability can increase inflammation which can influence skin conditions such as eczema, acne, psoriasis, and rosacea in some individuals.
When someone develops ongoing skin problems, we would want to look at their diet, potential hormonal imbalances, organ function, blood sugar regulation, digestive health and their nutrient status.
It would also be important check if they are exposed to any environmental toxins that could be contributing factors.
Persistent skin changes should never be ignored. If you have been struggling with a skin issue have a health professional take a look to see if there are any underlying factors that could be causing the symptoms.
After all, healthy skin often reflects a healthy body.
Listen to my interview with Anton Brink from Radio Cape Pulpit on 23 July 2026 to learn more. Listen to my next interview on Thursday at 7.45am.