Main
- Anaemia is secondary: blood loss, lack of iron or vitamins, inflammation, and kidney disease underlie the drop in haemoglobin.
- They start with a complete blood count: red cell indices show the size of the cells and hint at the cause of the deficiency.
- Ferritin reflects iron stores: haemoglobin returns to normal earlier, so monitoring is based on this indicator.
- The first doctor is a physician: for digestive problems a gastroenterologist is brought in, for female causes — a gynaecologist.
- An ambulance is called urgently for fainting, breathlessness at rest, black stools: these are signs of dangerous blood loss.
What is anaemia
Anaemia is a condition in which the level of haemoglobin in the blood falls, and most often the cause lies in a lack of iron. In itself such a fall is not a diagnosis but a sign, so specialists always look for the underlying disease.
What happens in the body
Haemoglobin is a protein in red blood cells that carries oxygen from the lungs to all organs and tissues. When there is less of it, the body experiences oxygen starvation, and this affects how a person feels. The brain and muscles receive less oxygen, so weakness, rapid fatigue and reduced working capacity appear. The skin and mucous membranes become pale because the amount of the coloured protein in them decreases. The heart has to pump blood faster in order to deliver the required volume of oxygen to the tissues. With a prolonged deficiency, memory, attention and the ability to cope with usual loads suffer. If the cause is not identified, the condition gradually worsens and affects the work of the internal organs. Therefore, with a persistent fall in haemoglobin it is important not to postpone a visit to the doctor in order to find out the source of the problem.
What causes it to develop
- Lack of iron: iron is needed to build haemoglobin, and without it red blood cells cannot fully carry oxygen.
- Heavy periods: in women of childbearing age, regular blood loss during the cycle gradually depletes the body's iron stores.
- Blood loss from the gastrointestinal tract: in men and in women after the menopause this is the source that is looked for first, since it often goes unnoticed.
- Deficiency of vitamin B12 and folic acid: these substances take part in the maturation of red blood cells, and their lack disrupts normal blood formation.
- Chronic inflammation: a prolonged inflammatory process changes the metabolism of iron in the body and prevents its full use.
- Kidney disease: the kidneys produce a substance that triggers the formation of red blood cells, and when they are affected this process slows down.
Who faces this more often
A fall in haemoglobin is more often detected in women of childbearing age, and this is largely connected with regular blood loss during menstruation. In men and in women after the menopause, iron deficiency occurs less often, but requires closer attention to the search for the source of blood loss. People with chronic inflammatory diseases and with kidney diseases are also at increased risk. The frequency is also influenced by diet: if the diet contains few foods rich in iron, the stores of this element are gradually depleted. Digestive characteristics also play a certain role, because impaired absorption of nutrients in the intestine prevents the body from taking in what it needs. Pregnancy and the period of breastfeeding increase the need for iron, so at this time the risk rises. Understanding who is at risk helps the doctor to determine the probable cause more quickly and to choose the right direction for examination.
What symptoms can occur?
Anaemia develops gradually, and its signs are easily mistaken for ordinary tiredness. Several characteristic symptoms help to suspect the condition, and some complaints require urgent help.
How it is noticed at the very beginning
The body adapts to a gradual fall in haemoglobin, so complaints appear later than the test results change. A person puts the weakness down to lack of sleep or a heavy workload and does not link it to the blood. Fatigue appears that does not go away after rest and interferes with usual activities. Breathlessness occurs when climbing stairs, although climbing used to be easy. The skin and mucous membranes become pale, which is noticed by those close to the person rather than by the person themselves. Nails break, hair falls out, and cracks appear at the corners of the mouth. A craving for unusual things — chalk, ice, the smell of petrol — is also a reason to check haemoglobin.
Signs that occur most often
- Weakness and fatigue: strength runs out faster than usual, rest does not restore alertness, and this interferes with work and household tasks.
- Breathlessness when climbing stairs: breathing becomes short where it used to be enough, because the tissues lack oxygen.
- Pallor of the skin and mucous membranes: the colour of the face and the inner surface of the lips changes, and this is one of the external signs of low haemoglobin.
- Brittle nails and hair loss: nails peel and break, hair loses density, which reflects a lack of nourishment for the tissues.
- Cracks at the corners of the mouth: the little fissures take a long time to heal and cause discomfort when eating and talking.
- Rapid heartbeat: the heart works faster to distribute a smaller amount of oxygen, and this is felt as palpitations.
When to seek help urgently
Examinations and tests
Examination for anaemia begins with a blood test, because it shows the anaemia itself and its nature. Then the doctor looks for the cause: iron or vitamin deficiency, or hidden blood loss.
How the examination begins
A full blood count with red cell indices at the first appointment shows not only the haemoglobin level, but also the size of the red blood cells. Haemoglobin alone is not enough: it says that anaemia is present, but not which type. Small pale red blood cells point to a lack of iron, while large cells suggest a deficiency of vitamin B12 or folic acid. The doctor compares these values with the person's complaints, examination and medical history. Then they decide which further tests are needed in this particular case. If the picture points to iron deficiency, the next step is to assess the body's iron stores. This order saves time and prevents treating anaemia blindly, without understanding its cause.
What is prescribed and what it shows
What is worth preparing for the appointment
- Discharge summaries and reports: bring documents about past illnesses and operations so that the doctor can see the overall picture of your health.
- Previous blood tests: results from past months and years help to understand how long and how the values have changed.
- List of medications taken: list everything you take regularly, including vitamins and supplements, as this affects the interpretation of the tests.
- Calendar of observations: note when weakness, pallor and breathlessness appeared and how they changed over time.
- Information about blood loss: recall and write down heavy periods, bleeding gums, dark stools or blood donation.
- Questions for the doctor: formulate in advance what you want to clarify, so that the appointment is focused and unhurried.
Which doctor should I see?
This section explains which doctor to consult for anaemia, what happens at the first appointment and what areas of care it involves. It also describes how much of the result depends on regular follow-up.
Which specialist manages this condition
The physician is the first doctor to consult when anaemia is suspected, and they determine the further route. At the appointment they ask about how you feel, review the history of visits and decide whether a narrow specialist is needed. If the cause is related to digestion, the patient is referred to a gastroenterologist, who looks for the source of blood loss or impaired absorption. When it concerns women's health, a gynaecologist is involved: they assess the regularity of the cycle and the volume of blood loss. This division is important because care depends not on the name of the condition but on its origin. If a specialised doctor is not available nearby, start with the physician: they manage the patient and coordinate the actions of the others. Do not postpone the visit if weakness and pallor persist for weeks, as the cause may require separate attention.
What treatment consists of
- Replenishing iron stores: iron is taken long-term, because the blood is restored first and only then the body's internal stores.
- Monitoring ferritin: it is this indicator that reflects whether the stores have been restored, whereas haemoglobin returns to normal noticeably earlier.
- Finding the cause: without eliminating the source of the deficiency the condition will return, so the doctor looks for where the iron is being lost.
- Follow-up with a specialised doctor: a gastroenterologist or gynaecologist is involved when the cause relates to their field, and handles their part of the work.
- Nutrition as support: iron deficiency is not treated with diet, but a balanced diet helps maintain the result after recovery.
- Regular monitoring: repeat tests show the dynamics, and based on them the doctor decides whether to continue follow-up further.
What depends on the patient themselves
Regular follow-up is what largely determines how long the result will last and whether the deficiency will return again. Iron is taken long-term, and the course does not end together with the normalisation of haemoglobin: the blood is restored first, while the stores lag behind. The control indicator here is ferritin, and it is by it that one can see whether the replenishment is complete. If follow-up is stopped while feeling well, the stores will remain incomplete, and the condition will gradually return. Nutrition works to maintain, not to replenish, so diet alone will not close an established deficiency. Write down the dates of tests and the results, so that at the appointment there is a clear picture of the dynamics. Discuss with the doctor when to come for monitoring, and keep to this schedule without missing appointments.
What helps prevent an exacerbation?
Preventing an exacerbation of anaemia is helped by everyday lifestyle, not by individual one-off measures. Below is an analysis of which habits and observations should be maintained constantly so that the condition remains stable.
What is changed in habits
Diet and daily routine directly affect how the body absorbs iron and retains its stores. Meat, liver and legumes in the diet give the body iron in the form that is absorbed best. Vitamin C improves iron absorption, so vegetables and fruit alongside such dishes work to one's benefit. Tea and coffee interfere with iron absorption if drunk at the same time as food or immediately after it. The habit of postponing a cup of tea for an hour after a meal is noticeable in the gradual improvement of blood counts. Heavy menstruation in women requires separate attention, because iron is lost with the blood. Regular sleep and feasible physical activity support general well-being and help to tolerate a drop in haemoglobin more easily. If a full blood count is taken once a year, changes can be noticed earlier than pronounced complaints appear.
What should be kept under control
- Full blood count: it is taken once a year in order to notice a drop in haemoglobin in time and not to miss the onset of an exacerbation.
- Ferritin: it is checked in heavy menstruation, since this indicator reflects the body's iron stores earlier than haemoglobin.
- Diet: meat, liver and legumes should be included in the menu regularly, so that iron comes with food constantly, and not from time to time.
- Vitamin C: foods containing it alongside iron-containing dishes improve absorption, so the combination should be thought through in advance.
- Tea and coffee: it is better not to drink them at the same time as taking iron, otherwise the drinks reduce its absorption and reduce the benefit of the food to a minimum.
- Observation diary: records of well-being and the dates of tests help the doctor to see the picture over time and to adjust recommendations in time.
How often to see a doctor
A regular visit to the doctor is needed even when well-being seems quite good. A full blood count once a year gives a calm reference point and allows shifts to be noticed before complaints appear. In heavy menstruation, ferritin is checked more often, because iron loss is constant. At the appointment, the doctor compares the test results with well-being and with how the person eats on ordinary days. If weakness, pallor or rapid fatigue appear, the visit should not be postponed until the planned date. Between visits it is useful to write down what changes in the condition and in habits, so that the conversation is specific. Such monitoring does not replace the prescribed treatment, but it helps the doctor to see in time that the situation is changing.
What is worth remembering
Anaemia is a condition in which the amount of haemoglobin or red blood cells in the blood decreases, and the body receives less oxygen. It is important to understand the causes and signs so that you consult a doctor in time and do not confuse this condition with ordinary tiredness.
Key points
Anaemia is always secondary: it is not a disease in its own right, but a consequence of another process in the body. Behind a drop in haemoglobin there may be blood loss, a lack of iron or vitamins, chronic inflammation, or inherited characteristics. The condition manifests as pallor of the skin and mucous membranes, weakness, breathlessness on usual exertion, ringing in the ears, brittle nails and hair loss. These signs increase gradually, so a person often puts them down to tiredness and postpones a visit to the doctor. Anaemia can be confirmed or ruled out only by a blood test, not by appearance and how one feels. Further examination is needed to understand the cause: without this, correcting a low haemoglobin alone does not solve the problem. If the cause is not found, the condition returns, and hidden blood loss or a deficiency continues to harm the body. Therefore, with persistent weakness it is sensible not to wait, but to discuss with a physician whether a blood test is needed.
