Trusted Information for a healthier you
Asthma symptoms can vary from person to person. They may be mild at times and severe at other times. Symptoms often come and go and can get worse when you are exposed to certain triggers.
Asthma symptoms happen when the airways become inflamed, narrow, or produce extra mucus. This makes it harder for air to move in and out of your lungs.
A whistling sound when you breathe, especially when breathing out.
May be dry or with mucus, and often worse at night or early morning.
Feeling like you can't get enough air or it's hard to breathe.
A feeling of pressure or tightness in the chest.
Symptoms can be different for each person and may change over time. You might have symptoms only during exercise, at night, or when you have a cold.
Coughing, wheezing, and shortness of breath can become more noticeable at night or early morning.
Exercise can trigger symptoms in some people. Proper treatment can help you stay active.
Young children may have coughing, wheezing, or trouble breathing during play or sleep.
Respiratory infections can trigger or worsen asthma symptoms.
Allergens like pollen, dust, or pet dander can cause or worsen asthma symptoms.
Strong emotions and stress can trigger symptoms in some people.
When symptoms occur, the airways become inflamed and narrowed, making breathing more difficult.
Learn how asthma affects your airwaysLearn what asthma is, how it affects your airways, and how it is treated.
Read MoreThis information is provided for general educational purposes only and is not a substitute for professional medical advice. If you have concerns about asthma symptoms, diagnosis, or treatment, speak with a qualified healthcare professional.