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Whooping cough symptoms

3-minute read

Whooping cough tends to develop in stages, with mild symptoms occurring first, followed by a period of more severe symptoms, before improvement begins.

If your child is struggling to breathe or their lips turn blue, call an ambulance on triple zero (000). If you think your child has whooping cough, take them to the doctor as soon as possible.

Early symptoms

The early symptoms of whooping cough are often similar to those of a common cold and may include:

These early symptoms of whooping cough can last for 1 to 2 weeks, before becoming more severe.

Check your symptoms with healthdirect’s Symptom Checker to get advice on when to seek medical attention.

Paroxysmal symptoms

The second stage of whooping cough is often called the paroxysmal stage and involves intense bouts of coughing. The bouts are sometimes referred to as ‘paroxysms’ of coughing.

The paroxysmal symptoms of whooping cough may include:

  • intense bouts of coughing, which bring up thick phlegm
  • a ‘whoop’ sound with each sharp intake of breath after coughing
  • vomiting after coughing, especially in infants and young children
  • tiredness and redness or blueness in the face from the effort of coughing

Each bout of coughing usually lasts between 1 and 2 minutes, but several bouts may occur in quick succession and last several minutes. The number of coughing bouts experienced each day varies.

The paroxysmal symptoms of whooping cough usually last at least 2 weeks, but can last up to 10 weeks, even after treatment. This is because the cough continues even after the Bordetella pertussis bacterium has been cleared from your body.

Whooping cough complications


Infants younger than 6 months may not make the ‘whoop’ sound after coughing, but they may start gagging or gasping, and may temporarily stop breathing. While your baby is unwell with whooping cough, it is a good idea to keep them close by and watch them carefully in case they stops breathing. Some babies will need to stay in hospital. If your baby has any trouble breathing, call triple zero (000).

Babies under 1 year old can be especially susceptible to complications of whooping cough such as pneumonia, damage to the airway’s tubes, convulsions and brain damage. Though very rare, it’s possible for whooping cough to cause sudden unexpected death in infants.

If your baby has persistent vomiting, seizures, or signs of dehydration, see your doctor or go to your local emergency department. See your doctor as soon as possible if you think you or your child may have whooping cough.

Young children

Young children can develop apnoea as a complication of whooping cough in which they can stop breathing for long periods of time. Young children may also seem to choke or become blue in the face (cyanosis) when they have a bout of coughing. If your child is experiencing any of these complications — not breathing and/or turning blue — call triple zero (000) for an ambulance.

Adults and older children

In adults and older children, the paroxysmal symptoms of whooping cough are far less severe than in young children, and may appear more like symptoms of a milder respiratory infection such as bronchitis.

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Last reviewed: March 2019

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