Call Us
Tap on a number to call
Enquire
Log In
Menu
Contact Us
Call Us
Tap on a number to call
Enquire

Postnatal depression: causes, symptoms and treatment

Postnatal depression can be overwhelming, but recognising the signs early is key to getting the support you need for a healthy recovery.

Take control of your mental health with Priory’s expert-led treatments, designed to help you regain balance and confidence in your new role as a parent.

Page last updated:
Written by: Rachael Heades
Senior copywriter
Clinically reviewed by: Dr Bosky Nair
Consultant Psychiatrist at Priory Wellbeing Centre Canterbury

It’s completely normal to go through emotional ups and downs during pregnancy and after giving birth. But for some people, those feelings can become more serious and long-lasting. This is where terms like postpartum, postnatal and perinatal depression come in.

  • Postpartum depression refers to depression that begins in the early weeks after giving birth – typically within the first 6 to 8 weeks. This term is more commonly used in the USA and in medical settings
  • Postnatal depression generally refers to depression that occurs within the first year after birth. This term is more commonly used in the UK
  • Perinatal depression is a broader term that includes both antenatal (during pregnancy) and postnatal depression

The terms ‘postpartum depression’ and ‘postnatal depression’ are often used interchangeably to describe the same thing – a recognised form of depression that can develop in the weeks or months after having a baby. 
Around 1 in 10 women in the UK experience postnatal depression, and it’s thought to affect around 17.2% of people worldwide. 

This page explores the signs and causes of postnatal depression, and the support options available.

How is postnatal depression different from the baby blues?

It’s common to feel tearful, emotional or overwhelmed soon after having a baby. This is known as the baby blues, and it affects around 8 in 10 new mums. 

It’s caused by a mix of hormonal changes, a lack of sleep and the huge life adjustment that comes with a new arrival. The baby blues usually starts within the first few days after birth and tends to pass on its own within about 2 weeks. 

Postnatal depression is more severe, persistent and disruptive than the baby blues. It often develops in the first few weeks or months after birth, but it can start any time in the first year. The symptoms last longer and may get worse over time without help. It can also affect your ability to bond with your baby or manage daily life. 

Differences Baby blues Postnatal depression
When it starts Within the first few days of birth Anytime within the first year of birth
Duration Up to two weeks Weeks or months (without treatment)
How it feels Tearful, emotional, overwhelming Persistent low mood, anxiety, hopelessness
Severity Mild and manageable Moderate to severe
Support Usually resolves on its own Often needs professional treatment

Signs and symptoms of postnatal depression

Postnatal depression can affect people in different ways. Some symptoms may appear soon after birth, while others develop gradually in the weeks or months that follow. 

Early signs to look out for

These are some of the first changes you might notice:

  • Feeling unusually low, flat or numb
  • Tearfulness that doesn’t seem to have a clear cause
  • Persistent tiredness or trouble sleeping (even when your baby sleeps)
  • Feeling anxious, on edge or overwhelmed
  • Struggling to bond with your baby or feeling distant
  • Loss of interest in things you used to enjoy
  • Irritability or feeling unable to cope

Longer-term or more intense symptoms

If left untreated, postnatal depression can become more severe over time. Symptoms might include:

  • Constant low mood or hopelessness
  • Feelings of guilt, shame or worthlessness
  • Withdrawal from family, friends or activities
  • Difficulty concentrating or making decisions
  • Physical symptoms like aches, pains or changes in appetite
  • Thoughts of harming yourself or feeling like your baby or family would be better off without you

If you’re having thoughts of harming yourself or feel unable to keep you or your baby safe, seek urgent help by contacting your GP, calling NHS 111 or visiting your nearest A&E. You can also speak to a mental health professional or call a helpline like Samaritans on 116 123 (free, 24/7).

What causes postnatal depression?

There isn’t a single cause of postnatal depression. Instead, it’s usually a combination of hormonal, emotional, social and personal factors that come together around the time of pregnancy and birth.

Some of the most common factors include:

  • Hormonal changes – after giving birth, there’s a sudden drop in hormones like oestrogen and progesterone. These shifts can affect brain chemistry and mood regulation, making some people more vulnerable to depression
  • Sleep deprivation – caring for a newborn often means disrupted sleep and long periods of exhaustion. Poor sleep can take a significant toll on your emotional resilience, especially if it continues for weeks or months
  • Stress and fatigue – pregnancy, birth and new parenthood can be physically and emotionally overwhelming. The demands of feeding, soothing, adjusting to your new role and managing other responsibilities can all build up, leaving you feeling depleted and low
  • History of depression or anxiety – if you’ve previously experienced depression, anxiety or other mental health conditions, or if there’s a family history, you may be at a higher risk of developing postnatal depression. But it can still affect people with no prior history
  • Lack of support – not having consistent support from family, friends or a partner can make you feel isolated or alone, and can contribute to feelings of inadequacy, guilt or sadness
    Postnatal depression isn’t your fault – it’s a mental health condition, and with the right support, things can get better.

potential causes of postpartum depression

Who can be affected by postnatal depression? 

Postnatal depression is, by definition, most commonly associated with mothers after giving birth. However, other parents and caregivers can also experience depression during the same period, including:

  • Partners and fathers
  • Adoptive parents
  • Parents through surrogacy
  • Non-birthing parents in same-sex couples

Anyone taking on the emotional, physical or psychological demands of new parenthood is at risk of experiencing low mood or depression. If you’re feeling low, anxious, or simply ‘not yourself’ after becoming a parent, you’re not alone and help is available.

How does postnatal depression affect parents and babies?

Parents

Living with postnatal depression can make even the simplest tasks feel overwhelming. You might struggle to get out of bed, find it hard to concentrate, or feel detached from the world around you. Many parents say they feel numb, ashamed, or as though they’re just ‘going through the motions’.

It can also affect relationships with partners, family or friends. You might feel irritable, misunderstood or withdrawn – all of which can create distance at a time when you need support. On top of this, feelings of guilt or inadequacy are very common, even though they’re not a reflection of who you are or how much you care.

Babies and children

Postnatal depression can sometimes affect how you connect with your baby. You may find it difficult to bond or feel unsure of how to soothe or respond to your baby’s needs. This doesn’t mean you’re a bad parent – it means you’re struggling, and that’s something that can be addressed with the right support.

Postnatal depression can also affect older children, especially if they notice changes in your mood, routine or energy levels. They might not always understand what’s happening, but they can often sense when something feels different at home.

With the right support in place, it’s entirely possible to restore a sense of stability and continue nurturing strong, loving relationships with all your children.

Treatment for postnatal depression

Postnatal depression is treatable, and you don’t have to face it alone. With the right support, many people make a full recovery and go on to enjoy life with their baby.

When to seek help for postnatal depression

The early days of parenthood can be emotionally and physically overwhelming. But if these feelings last more than 2 weeks, aren’t improving or are getting worse, it could be a sign of postnatal depression.

What matters most is the pattern and impact of what you're experiencing. You might want to get help if:

  • Your low mood has lasted for more than 2 weeks
  • You feel increasingly disconnected from your baby
  • Day-to-day tasks or self-care are becoming hard to manage
  • You’re unable to sleep, even when your baby sleeps
  • Feelings of guilt, hopelessness or failure are becoming more frequent
  • You’ve had thoughts of harming yourself 

You don’t have to wait until you reach crisis point. Speaking to your GP, midwife, health visitor or a mental health professional can be a powerful first step – they’re here to listen and help you feel like yourself again.

How postnatal depression is diagnosed

There’s no single test for postnatal depression. Instead, diagnosis is based on your symptoms, how long they’ve been going on, and how they’re affecting your day-to-day life and wellbeing.

Your GP, health visitor or therapist may use a screening tool called the Edinburgh Postnatal Depression Scale (EPDS)  – a short questionnaire designed to help identify symptoms of depression. They may also ask questions about:

  • Your mood and emotional wellbeing
  • Changes in sleep, appetite or energy
  • How you're feeling about your baby and parenting
  • Any history of mental health difficulties

These conversations are handled with compassion and confidentiality. Health professionals understand how difficult it can be to open up and are trained to support you. 

Treatment options for postnatal depression

Many people find that with the right support, they start to feel more like themselves again. The best treatment approach depends on the severity of your symptoms and your personal circumstances. Options may include:

  • Self-help strategies and guided support – for mild symptoms, things like regular exercise, getting outside, relaxation techniques, and support from other parents or peer groups can be helpful early steps
  • Talking therapies – psychological therapies like cognitive behavioural therapy (CBT) or interpersonal therapy (IPT) are commonly recommended for postnatal depression. These give you space to explore your thoughts and feelings and learn new ways of coping
  • Medication – antidepressants (usually selective serotonin reuptake inhibitors (SSRIs)) may be prescribed for moderate to severe postnatal depression. Many are considered safe to take while breastfeeding, and your healthcare provider will talk you through your options
  • A combination of treatments – a mix of therapy and medication is often the most effective route, particularly if your symptoms are more severe or have been present for a while

At Priory, we offer a range of evidence-based treatments for depression at any stage of the perinatal period, tailored to your individual needs. We have options ranging from intensive inpatient support to flexible outpatient treatment or online therapy sessions, so you can access the level of help that’s right for you. 

We also offer a free self-care hub with guided exercises, relaxation techniques and expert-led videos – designed to support your mental wellbeing at home, whenever you need it.

The earlier you get support, the better the outcomes tend to be, both for your wellbeing and your baby’s. Taking that first step is a sign of strength, and it can lead to lasting recovery.

FAQs

Can postnatal depression be prevented?

There’s no guaranteed way to prevent postnatal depression, but being aware of the signs and having support in place can make a big difference – especially if you’ve experienced depression, anxiety or postnatal depression in the past.

Letting your GP or midwife know about your mental health history means they can offer extra support and keep a closer eye on how you're feeling after birth.

Getting rest, talking about your experience and emotions, and asking for help when you need it can also reduce the risk. Even with these steps, postnatal depression can still happen and it’s not your fault. The most important thing is to seek help early.

How can I support someone with postnatal depression?

Supporting someone with postnatal depression starts with listening and letting them know they’re not alone. You don’t need to fix things – just being there, without judgement, can make a big difference.

You can also help by:

  • Encouraging them to talk to a GP or health visitor
  • Offering practical help, like cooking, cleaning or watching the baby
  • Reminding them that recovery is possible, even if it doesn’t feel like it right now
  • Being patient – some days will be better than others

How long does postnatal depression last?

There’s no set timeframe – postnatal depression affects everyone differently. For some, it may last a few months; for others, it can continue longer.

With the right support and treatment, most people start to feel better within weeks or months. The earlier you seek help, the sooner recovery can begin. 

Is postnatal depression the same as postnatal anxiety?

No – they’re different conditions, but they can happen at the same time.

Postnatal depression involves persistent low mood and feelings of hopelessness. Postnatal anxiety is more about excessive worry and physical symptoms like a racing heart or trouble sleeping.

How common is postnatal psychosis?

Postnatal psychosis is rare, affecting about 1 in every 1,000 new mothers. It usually develops in the first few days or weeks after giving birth and is considered a medical emergency.

Symptoms may include confusion, hallucinations, delusions, extreme mood swings or unusual behaviour. While it can be frightening, postnatal psychosis is treatable, and with the right care, most people make a full recovery.

Contact us to make an enquiry or for more information

Call Us
Tap on a number to call
Enquire