Types of Depression

There are different types of depressive disorders. Symptoms can range from relatively minor (but still disabling) through to very severe, so it's helpful to be aware of the range of conditions and their specific symptoms. Major depression Major depression is sometimes called major depressive disorder, clinical depression, unipolar depression or simply 'depression'. It involves low mood and/or loss of interest and pleasure in usual activities, as well as other symptoms. The symptoms are experienced most days and last for at least two weeks. Symptoms of depression interfere with all areas of a person's life, including work and social relationships. Depression can be described as mild, moderate or severe; melancholic or psychotic (see below).


This is the term used to describe a severe form of depression where many of the physical symptoms of depression are present. One of the major changes is that the person starts to move more slowly. They're also more likely to have a depressed mood that is characterised by complete loss of pleasure in everything, or almost everything.

Psychotic depression

Sometimes people with a depressive disorder can lose touch with reality and experience psychosis. This can involve hallucinations (seeing or hearing things that aren't there) or delusions (false beliefs that aren't shared by others), such as believing they are bad or evil, or that they're being watched or followed. They can also be paranoid, feeling as though everyone is against them or that they are the cause of illness or bad events occurring around them.

Antenatal and postnatal depression

Women are at an increased risk of depression during pregnancy (known as the antenatal or prenatal period) and in the year following childbirth (known as the postnatal period). You may also come across the term 'perinatal', which describes the period covered by pregnancy and the first year after the baby's birth. The causes of depression at this time can be complex and are often the result of a combination of factors. In the days immediately following birth, many women experience the 'baby blues' which is a common condition related to hormonal changes and affects up to 80 per cent of women. The 'baby blues', or general stress adjusting to pregnancy and/or a new baby, are common experiences, but are different from depression. Depression is longer lasting and can affect not only the mother, but her relationship with her baby, the child's development, the mother's relationship with her partner and with other members of the family. Almost 10 per cent of women will experience depression during pregnancy. This increases to 16 per cent in the first three months after having a baby.

Bipolar disorder

Bipolar disorder used to be known as 'manic depression' because the person experiences periods of depression and periods of mania, with periods of normal mood in between. Mania is like the opposite of depression and can vary in intensity – symptoms include feeling great, having lots of energy, having racing thoughts and little need for sleep, talking quickly, having difficulty focusing on tasks, and feeling frustrated and irritable. This is not just a fleeting experience. Sometimes the person loses touch with reality and has episodes of psychosis. Experiencing psychosis involves hallucinations (seeing or hearing something that is not there) or having delusions (e.g. the person believing he or she has superpowers). Bipolar disorder seems to be most closely linked to family history. Stress and conflict can trigger episodes for people with this condition and it's not uncommon for bipolar disorder to be misdiagnosed as depression, alcohol or drug abuse, attention deficit hyperactivity disorder (ADHD) or schizophrenia. Diagnosis depends on the person having had an episode of mania and, unless observed, this can be hard to pick. It is not uncommon for people to go for years before receiving an accurate diagnosis of bipolar disorder. If you're experiencing highs and lows, it's helpful to make this clear to your doctor or treating health professional. Bipolar disorder affects approximately 2 per cent of the population.

Cyclothymic disorder

Cyclothymic disorder is often described as a milder form of bipolar disorder. The person experiences chronic fluctuating moods over at least two years, involving periods of hypomania (a mild to moderate level of mania) and periods of depressive symptoms, with very short periods (no more than two months) of normality between. The duration of the symptoms are shorter, less severe and not as regular, and therefore don't fit the criteria of bipolar disorder or major depression.

Dysthymic disorder

The symptoms of dysthymia are similar to those of major depression but are less severe. However, in the case of dysthymia, symptoms last longer. A person has to have this milder depression for more than two years to be diagnosed with dysthymia. Seasonal affective disorder (SAD) SAD is a mood disorder that has a seasonal pattern. The cause of the disorder is unclear, but it's thought to be related to the variation in light exposure in different seasons. It's characterised by mood disturbances (either periods of depression or mania) that begin and end in a particular season. Depression which starts in winter and subsides when the season ends is the most common. It's usually diagnosed after the person has had the same symptoms during winter for a couple of years. People with SAD depression are more likely to experience a lack of energy, sleep too much, overeat, gain weight and crave for carbohydrates. SAD is very rare in Australia and more likely to be found in countries with shorter days and longer periods of darkness, such as in the cold climate areas of the Northern Hemisphere.

Remember, depression is treatable and effective treatments are available. The earlier you seek support, the better.

Child 6-12 - Signs of concern

If you’ve noticed some of the following changes in your child’s emotions and behaviour, talk things through with your GP or other health professional.

  • Frequent, unexplained temper tantrums
  • Unusual fears
  • Difficulty going to sleep or staying asleep
  • Sadness and feelings of hopelessness that don’t go away
  • Avoiding friends or family and wanting to be alone most of the time
  • Refusing to go to preschool or school on a regular basis
  • Inability to get along with other children
  • Hyperactive behaviour or constant movement beyond regular playing
  • Noticeable disinterest or decline in school performance
  • Frequent aggressive reactions (more than is reasonably expected in the situation)
  • Difficulties with concentration, attention and organisation
  • Any other changes from their usual way of acting over a short period of time.

Signs of depression in children

Children often find it difficult to explain how they’re feeling, especially if they’re experiencing depression. However, there are a few key signs and symptoms to look out for – particularly if they happen together over several weeks and are out of character for your child.  Children with depression may:

  • have low energy and be difficult to motivate
  • lose interest easily in an activity they usually enjoy
  • have difficulty listening and concentrating on tasks
  • make negative comments about themselves
  • withdraw from social situations, not want to spend time with friends
  • look for what’s wrong rather than see the positives in situations
  • be very difficult to please
  • be irritable, agitated, easily annoyed or upset
  • seem sad and cry easily and be difficult to soothe
  • either have no interest in food or overeat
  • have problems going to sleep or staying asleep, waking early, or sleeping a lot

Because the symptoms of depression are often characterised by negative behaviour such as irritability or whining, it’s easy to feel annoyed and to blame or punish the child for their behaviour. This can result in other signs of depression being missed. What you can do to help If you’ve noticed that a child you care about doesn’t seem themselves, the first step is to talk about what’s going on and how they’re feeling. If they reply with a ‘dunno’, suggest some feeling words and see if any hit the mark with them. 

Let your child know that it’s OK to ask for help and that you’re ready to listen to whatever they want to say. If they’re distressed about a particular situation, you can help them to solve the problem or find ways yourself to improve the situation. You could also try doing something fun, getting outside and doing some exercise, or doing something special together. 

Older 13 + What to look for

The main thing to look for in your young person is a sudden and ongoing change from the way they usually behave and feel.  Depression doesn’t just cause young people to feel sad or down, and anxiety doesn’t just make people worry. Young people can express anxiety and depression in many different ways.  They may:

  • have trouble falling or staying asleep, or complain of restless, unsatisfying sleep
  • be tired, grumpy, irritable, tearful or upset most of the time
  • feel restless or on edge
  • lose interest in things they used to enjoy, and have trouble starting and completing assignments or work
  • be forgetful, lose concentration and be easily distracted
  • become withdrawn and lose friends
  • either refuse to eat or eat a lot, and either lose or gain weight quickly
  • have tense or sore muscles
  • complain of feeling physically awful, with unexplained aches and pains, and not want to go to school/work.

Always seek help from a professional in mental health if you feel there is an issue.  Earlier the better!