Persistent fatigue, pale complexion, weakening nails: so many messages that the body tries to send. You still have to know how to hear them. Understanding the causes, spotting the symptoms – including those we never notice – and knowing when to consult: an essential path to prevent an iron deficiency from developing into anemia.
When iron slips away: understanding the origin of a silent deficiency
In clinical practice, iron deficiency rarely presents itself in a dramatic light. It progresses quietly, sometimes for months.
Dr. Gérald Kierzek reminds us that, if nothing hinders it, it can progress to iron deficiency anemia: “In many people, this deficiency goes unnoticed for a long time.he emphasizes.
Why lack iron? The reasons are rarely isolated.
The first is food:
“Some people simply lack iron in their diet.”he explains. Of the insufficient intakesa restrictive diet, increased needs can be enough to tip the balance.
The second is due to intestinal absorption:
“Others absorb it poorly due to digestive pathologies.adds the doctor. Inflammatory diseases, digestive disorders, surgery: so many situations where iron no longer enters the body correctly.
Then come the chronic blood lossfrequent and sometimes completely invisible, whether gynecological or digestive. And, last cause often ignored:
“We speak of functional deficiency in the event of inflammation, when iron is present in the body but poorly used.he specifies.
Each time, the deficiency tells a unique story: that of iron that is missing, or of iron that the body is no longer able to use.
Recognizing body signals: from fatigue to signs on the hands
When iron becomes scarce, cells gradually lack oxygen. The body then sends alerts, faint at first, but more and more insistent. Dr Gérald Kierzek describes this picture precisely:
“It can manifest as severe fatigue, decreased concentration and persistent asthenia.“.
This deep fatigue, which neither sleep nor rest dissipates, often constitutes the first signal. But it is accompanied by other symptoms, sometimes misleading:
-
Restless legs syndrome;
- Headaches;
- Hair loss;
- Inflammation of the tongue (glossitis);
- Cracks at the corners of the lips.
Some signs also nestle in the details of everyday life — to the point of being ignored. The appendages, particularly the nails, are particularly sensitive to a lack of iron. Dr. Kierzek reminds us:
“Additionally, nails may become thin, brittle, or distorted, a phenomenon called
koilonychia“.
This “spoon nail” deformation, more common than we think, can constitute a valuable marker of a prolonged deficit.
The complexion and mucous membranes are also real indicators:
“Pallor appears mainly on the mucous membranes, especially under the lower eyelids, on the gums or the tongue“, describes the doctor.
More rarely, we observe visible pallor on the hands:
“Pallor of the backs of the hands may exist, although it is less specific. It reflects a decrease in hemoglobin due to lack of iron, more marked when the deficiency worsens..
A discreet lightening of the back of the hands, weakened nails, a painful tongue… These manifestations, too often attributed to stress, the season or accumulated fatigue, are sometimes the first ambassadors of a deep deficiency.
When to consult: the signs that should lead to an assessment
Faced with lasting fatigue, unusual shortness of breath or visible changes in the mucous membranes and nails, a medical evaluation is necessary. Dr. Kierzek emphasizes an often neglected and yet very revealing examination:
“Examination of internal mucous membranesparticularly the lower eyelids, is one of the most reliable elements for identifying an iron deficiency“.
But only a blood test can confirm the diagnosis and understand the causes. The doctor insists:
“In case of doubt or persistent signs, a blood test can confirm the diagnosis and identify the cause of the iron deficiency.”.
Ferritin, hemoglobin, blood cell parameters… A few milliliters of blood are enough to shed light on weeks, sometimes months, of incomprehension.
1. How do I know if my fatigue is really due to a lack of iron?
Fatigue persists despite rest. It is sometimes accompanied by a pale complexion or fragile nails. Also observe your lower eyelids. A very clear mucous membrane is a useful sign. Low ferritin is often the first indicator. A blood test remains essential to confirm the origin.
2. What small everyday signs should alert me?
The signs are sometimes discreet. Deformed nails. Unusual hair loss. Restless legs in the evening. Sensitive or red tongue. These signals appear before anemia. They reveal a prolonged lack. A simple consultation allows you to quickly check.
3. When should you consult without delay?
Check if fatigue lasts. If you get out of breath easily. Or if your mucous membranes turn pale. A check-up is useful after heavy periods or a restrictive diet. Don’t wait until you’re exhausted. A few analyzes are enough to understand the situation. Early treatment prevents worsening of anemia.