What Is Cystic Fibrosis?

What Is Cystic Fibrosis? Cystic fibrosis is a genetic disorder that affects the lungs and digestive system. This condition causes mucus to build up in the airways, leading to respiratory issues and frequent lung infections. It can also make it difficult for the body to absorb nutrients.

What Is Cystic Fibrosis?

What Happens in Your Body

When you have cystic fibrosis, your body produces thick and sticky mucus. Normally, mucus in your lungs is thin and watery. It helps keep your airways moist and traps bacteria. But in this case, the thick mucus clogs up your airways. This causes breathing problems and traps bacteria, making you more prone to lung infections.

The Root Cause: Genetics

Cystic fibrosis is an inherited condition. So, if both your parents carry the defective gene, there’s a chance you’ll have it, too. When both parents are carriers, you have a 25% chance of developing the disease. Additionally, in people with cystic fibrosis, mutations in the CFTR gene cause the abnormal mucus production.


While respiratory issues are the most common sign, you’ll likely experience other symptoms too. Examples of these symptoms include:

  • Chronic cough with thick mucus
  • Wheezing and shortness of breath
  • Frequent lung infections
  • Poor weight gain despite a good appetite

Moreover, some people experience digestive issues like bloating and constipation. This happens because the thick mucus also affects the pancreas, making it hard for the body to absorb nutrients.

Diagnosis: How Do You Know You Have It?

In the United States, newborns are typically screened for cystic fibrosis. The test looks for high levels of a chemical called IRT in the blood. If the levels are high, additional tests, like a sweat test, are performed. During a sweat test, the amount of salt in your sweat is measured. High salt levels often indicate cystic fibrosis.

Treatment: Managing the Symptoms

Currently, there’s no cure for cystic fibrosis, but there are treatments to help manage the symptoms. For instance, airway clearance techniques help remove mucus from the lungs. Medications like bronchodilators and antibiotics are also used to treat lung infections and improve breathing.

Furthermore, nutritional therapy helps tackle digestive issues. People with cystic fibrosis often take enzyme supplements to help with nutrient absorption. They may also follow high-calorie diets to maintain a healthy weight.

Prevention: Can It Be Avoided?

Since cystic fibrosis is a genetic disorder, it can’t be prevented. However, if you’re planning to have children and cystic fibrosis runs in your family, genetic counseling can provide valuable insights. Through genetic testing, you can find out if you’re a carrier of the defective gene. This information can help you make informed decisions about family planning.

So, while there’s no way to prevent cystic fibrosis, being informed about your genetic risks can guide your choices. Even if you or a loved one has this condition, a combination of treatments can help manage the symptoms, improving the quality of life.

Frequently Asked Questions

What Does Cystic Fibrosis Do to the Lungs?

Cystic fibrosis causes your body to produce thick and sticky mucus that clogs the airways in your lungs. This makes it difficult for you to breathe and increases the risk of lung infections. Over time, these infections can cause severe damage to the lungs, leading to respiratory failure in extreme cases.

How Is Cystic Fibrosis Diagnosed?

In many countries, newborns are screened for cystic fibrosis as part of routine medical care. A blood test checks for high levels of a chemical called IRT. If the test comes back positive, additional tests, like a sweat test, are performed. The sweat test measures the amount of salt in your sweat; elevated levels often indicate cystic fibrosis.

Is Cystic Fibrosis Contagious?

No, cystic fibrosis is not contagious. You can’t catch it like a cold or the flu. It’s a genetic disorder, which means you inherit it from your parents. If both your parents are carriers of the defective gene responsible for cystic fibrosis, you have a 25% chance of developing the condition.

What Treatments Are Available for Cystic Fibrosis?

While there’s no cure for cystic fibrosis, several treatments aim to manage symptoms and improve quality of life. Airway clearance techniques, like chest physiotherapy, help remove mucus from your lungs. Medications such as bronchodilators open up the airways, and antibiotics treat lung infections. Additionally, people with cystic fibrosis often take enzyme supplements to help their bodies absorb nutrients.

Can People with Cystic Fibrosis Have a Normal Lifespan?

Although cystic fibrosis is a serious condition that requires ongoing medical care, advancements in treatment have significantly extended life expectancy. A few decades ago, children with cystic fibrosis rarely lived into adulthood. Now, thanks to better medications and therapies, many people with the condition live into their 40s and beyond. However, the severity of symptoms can vary from person to person, affecting individual life expectancy.

Similar Posts