Postnatal Depletion: Why You Are Still So Tired After Baby
Why Am I Still So Tired After Having a Baby? Postnatal Depletion Explained
The baby is fed, the washing is half folded, and you are so tired you have read the same sentence three times without taking anything in.
You have been told it is just motherhood. That you are a mum now, and being exhausted comes with the territory.
But what if it has been six months, a year, or even two years since you had your baby, and you still do not feel like yourself?
You are struggling to concentrate, your mood is all over the place, you are constantly reaching for coffee, and getting through the day feels harder than it should.
You are not failing at motherhood. And you do not have to assume that feeling exhausted all the time is simply your new normal.
There are several reasons you might still be experiencing fatigue after pregnancy and birth. Some are related to the demands of caring for a baby, while others may be linked to low iron, thyroid changes, nutritional deficiencies or your mental health.
Understanding what could be contributing to your symptoms is the first step towards getting the right support.
What is postnatal depletion?
Postnatal depletion is a term used to describe the ongoing physical and mental exhaustion some women experience after pregnancy and childbirth.
You might hear it described as feeling completely drained, struggling to think clearly or never quite getting your energy back.
Common symptoms associated with postnatal depletion include:
Constant tiredness, even when you get some sleep
Brain fog and difficulty concentrating
Feeling irritable, anxious or emotionally overwhelmed
Hair shedding or changes in your skin
Feeling exhausted but struggling to switch off at night
Finding it harder to cope with everyday tasks
Feeling disconnected from the energetic, motivated version of yourself you remember
Not every woman will experience all these symptoms, and they can have different causes. So in-depth assessment of your health and symptoms is needed to get to the bottom of why you feel this way.
It is also important to understand that postnatal depletion is not a formal medical diagnosis. Research on it as one specific condition is limited. However, there is plenty of evidence on the factors contributing to it, such as iron deficiency, thyroid problems, nutrient deficiencies, high stress, disrupted sleep and parental burnout that can affect how you feel after having a baby and if left unaddressed, how you feel for years after.
Why Am I So Tired After Having a Baby? What the Research Says
1. Low iron: Could your iron levels be contributing to your fatigue?
Pregnancy and childbirth place extra demands on your body, and blood loss during birth can contribute to low iron levels.
Iron helps your body make haemoglobin, a protein in red blood cells that carries oxygen around your body. When your iron levels are low, you may experience tiredness, weakness and difficulty concentrating.
Postpartum anaemia is a recognised health concern. A review by Milman (2011) reported that, one week after an uncomplicated birth, anaemia affected approximately 14% of women taking iron supplements and 24% of women not taking them. So if you start off with low iron from birth, and do not address it; it might continue to be low especially if your postpartum periods are heavy.
The review also linked postpartum anaemia with poorer quality of life, difficulties with thinking and memory, emotional changes and depression.
But here is something important: you can have low iron stores even when your haemoglobin is still within the normal range.
Ferritin is a blood marker used to assess your iron stores. If your ferritin is low, you may have iron deficiency before anaemia develops.
In a randomised trial of 198 women with unexplained fatigue, low ferritin and normal haemoglobin, fatigue improved more in the group taking iron than in the group taking a placebo over 12 weeks (Vaucher et al., 2012).
If you are wondering whether low iron could be contributing to your symptoms, a simple blood test assessing iron and ferritin will show us.
2. Postpartum thyroid problems: Is your thyroid being overlooked?
Your thyroid is a small gland in your neck that helps regulate your metabolism, energy and many other body functions.
After pregnancy, some women develop a condition called postpartum thyroiditis. This is an autoimmune condition in which the thyroid becomes inflamed during the first year after birth.
A review by Stagnaro-Green (2012) estimated that postpartum thyroiditis occurs in approximately 5.4% of the general population studied.
The condition can cause changes in thyroid function. Some women initially experience symptoms associated with an overactive thyroid, such as anxiety, irritability or a racing heart. Others develop an underactive thyroid, which may cause:
Ongoing fatigue
Dry skin
Difficulty concentrating or remembering things
Feeling unusually cold
Changes in weight or energy
These symptoms can easily be mistaken for the effects of broken sleep and the demands of motherhood, often leading to mums ignoring or downplaying their symptoms instead of getting them investigated
For some women, thyroid function returns to normal, in time. However, the review found that around 20–40% of women who experienced postpartum thyroiditis went on to develop permanent hypothyroidism.
If your energy has not returned or you have other symptoms that concern you, having a blood test to assess your thyroid can give you the answers you need.
You do not need to assume your thyroid is the problem, but it is one possible contributor worth investigating.
3. Sleep deprivation and parental burnout: More than just being tired
Let us be honest: having a baby can mean months or years of interrupted sleep. My eldest is 4 and I have had minimal 'full nights' sleep over that time, some nights better than others some horrendous with a baby waking, a toddler needing help and both kids taking turns waking up through the night, but its not forever.
You might be waking overnight to feed your baby, settling a toddler, managing work or trying to keep the household running while caring for everyone else while running on torture levels of sleep deprivation.
Sleep disruption alone can affect your concentration, mood, energy and ability to cope with everyday stress.
But sometimes, it can become more than feeling tired.
Research by Roskam, Brianda and Mikolajczak (2018) explored parental burnout and identified four key features:
Feeling physically and emotionally exhausted by parenting
Feeling very different from the parent you used to be
Feeling fed up with the demands of parenting
Becoming emotionally distant from your children
Parental burnout can develop when the demands of parenting outweigh the resources and support available to you for too long.
It does not mean you do not love your children. It does not mean you are a bad mum. It means you may be struggling under sustained pressure and need more support.
Nutrition and blood tests can be important parts of the picture, but so can practical help, protected rest, emotional support and a more manageable load.
Is It Postnatal Depletion, Postnatal Depression, or Both?
This is an important distinction.
Postnatal depletion and postnatal depression are not the same thing, although some symptoms can overlap.
Fatigue, poor concentration, irritability and changes in mood can occur for many reasons. Postnatal depression is a recognised mental health condition that may involve persistent sadness, hopelessness, loss of interest in things you usually enjoy or difficulty managing everyday life.
You can experience depression alongside physical health concerns, and one does not rule out the other.
If you have been feeling persistently low, anxious, hopeless or unlike yourself, please speak with your GP or child health nurse. You deserve support with your mental health, just as you do with your physical health.
In Australia, you can also contact PANDA on 1300 726 306 for perinatal mental health support. If you or someone else is in immediate danger, call 000.
What Can You Do to Support Your Energy After Having a Baby?
You do not need another complicated routine, a restrictive diet or a list of things you are doing wrong.
Start with small, realistic steps while you investigate what might be contributing to your symptoms.
Build nourishing meals around protein and iron
When you are busy caring for everyone else, it is easy to get to lunchtime having survived on coffee, toast crusts and whatever your toddler did not finish.
Try to build regular meals around protein and a variety of nourishing foods.
Some easy options include:
Eggs on wholegrain toast with fruit
Beef mince with vegetables and rice
Lentil soup with a squeeze of lemon
Sardines on toast with tomato
Chickpea salad with capsicum and citrus dressing
Red meat, legumes and sardines provide iron, while foods such as capsicum, kiwi fruit and citrus provide vitamin C, which helps your body absorb iron from plant foods.
Tea and coffee can reduce iron absorption from meals, particularly from plant sources of iron, so consider having them between meals rather than alongside them.
One more thing: do not start high dose iron supplements just because you are tired. Too much iron can be harmful, and supplementation should be guided by your individual needs and appropriate clinical advice.
Protect your rest where you can
You cannot always control how often your baby wakes, but you may be able to find small ways to reduce your overall load.
Could someone else handle the morning routine while you rest? Could dinner be simplified? Is there a household task you can leave until tomorrow?
Rest is not a reward you have to earn by finishing everything else first.
And if you are struggling with persistent exhaustion, getting more support is just as important as trying to improve your sleep habits.
We can also help your body get better quality sleep with herbal and nutritional medicine, so the small bits of sleep you can get are restful and help you recover.
How can naturopathic support help with postnatal depletion?
When you are exhausted, the last thing you need is another person telling you to eat better, exercise more or simply get more sleep.
You need a plan that considers what you are experiencing and what is realistically possible in your life right now.
As a clinical naturopath, I take an individualised approach to supporting women who feel exhausted, overwhelmed or unlike themselves after pregnancy and birth. Plus, I have been that exhausted mum so can empathise with what you are dealing with.
We can explore areas such as:
Your current eating patterns and nutritional intake
Practical ways to support balanced, regular meals
Gut health and digestive symptoms
Stress management and realistic daily routines
Sleep habits and opportunities for rest
Nutrition and lifestyle strategies that fit around family life
Herbal and nutritional medicine to replenish and nourish your body
Where appropriate, I can also help you understand testing options and discuss whether further investigation or referral is needed.
My approach is not about giving you a long list of restrictions or expecting you to overhaul your life overnight. It is about understanding your individual circumstances and building a practical plan around them.
You do not have to keep pushing through exhaustion and hoping it will eventually disappear.
If you are ready to explore what may be contributing to your symptoms, take my Postnatal Depletion Scorecard as a starting point, or book a free chat to discuss whether naturopathic support is right for you.
Frequently Asked Questions About Postnatal Depletion
How long does postnatal depletion last?
There is no established timeline because postnatal depletion is not a formal medical diagnosis. Fatigue may improve as sleep and daily routines settle, but persistent exhaustion can also reflect iron deficiency, thyroid problems, depression or other health concerns. If you are not improving, speak with your GP rather than assuming you simply need to wait longer.
Is postnatal depletion the same as postnatal depression?
No. Postnatal depletion is a descriptive term for ongoing physical and mental exhaustion, whereas postnatal depression is a recognised mental health condition. Symptoms can overlap, and both can occur together. Persistent low mood, anxiety or feelings of hopelessness deserve professional assessment.
Can I have low iron even if my haemoglobin is normal?
Yes. Ferritin helps assess your iron stores, and iron deficiency can occur before haemoglobin falls enough to meet the criteria for anaemia. Your GP can determine whether ferritin testing is appropriate and whether treatment is needed.
Can thyroid problems start after pregnancy?
Yes. Postpartum thyroiditis is an autoimmune thyroid condition that can develop during the first year after birth. It may cause changes in thyroid function and symptoms such as fatigue, anxiety, irritability or memory difficulties. Your GP can assess your symptoms and determine which thyroid tests are appropriate.
Disclaimer: This article is for general educational purposes only and does not replace individual medical advice, diagnosis or treatment. Please consult your GP or another appropriately qualified healthcare professional about persistent fatigue or other symptoms. Do not start high-dose supplements without appropriate advice.
References
Milman N. Postpartum anemia I: definition, prevalence, causes, and consequences. Ann Hematol. 2011;90(11):1247–1253.
Stagnaro-Green A. Approach to the patient with postpartum thyroiditis. J Clin Endocrinol Metab. 2012;97(2):334–342.
Roskam I, Brianda ME, Mikolajczak M. A step forward in the conceptualization and measurement of parental burnout: the Parental Burnout Assessment (PBA). Front Psychol. 2018;9:758.
Vaucher P, Druais PL, Waldvogel S, Favrat B. Effect of iron supplementation on fatigue in nonanemic menstruating women with low ferritin: a randomized controlled trial. CMAJ. 2012;184(11):1247–1254.