A carrier is a person who inherits one healthy copy and one faulty copy of the SMN1 gene. About 1 in 40 to 1 in 60 people are carriers of SMA. If both parents are carriers, they have a 1-in-4 chance of …

Aug 22, 2025 · Even if you don’t have the condition yourself, you could be a spinal muscular atrophy carrier. This means if you have children, they have a higher risk of developing SMA or being a carrier …

Carrier testing is available through a simple blood test. The test can detect the most common mutation that is associated with SMA and will detect approximately 90 percent of carriers. A negative carrier …

Aug 31, 2023 · SMA is inherited in an autosomal recessive pattern. This means that for a person to have the disorder, they must inherit two copies of affected genes (SMN1) – one from each parent – during...

Approximately 1 in 50 people are a genetic SMA carrier. Learn more about what it means to be an SMA carrier and what options are available to you.

This test is used to screen for carriers of spinal muscular atrophy (SMA) and assess risk of having a child with SMA.

The purpose of SMA carrier screening is to determine if a couple is at increased risk for having a child with SMA, the leading genetic cause of infant death. 1 You could be a carrier of SMA even if no one …

Spinal muscular atrophy (SMA) is one of the most common autosomal recessive diseases with an incidence of about 1 in 10,000 livebirths and a carrier frequency of 1 in 35 to 1 in 117, depending on …

If a person has one copy of the SMA gene that does not work right, he or she is called a carrier of SMA. As long as a person has one working copy of this gene, the body has enough of SMN1 to do its job, …

With the availability of SMA gene therapies, carrier screening can lead to earlier treatment and better outcomes. Learn how you can make a difference by offering carrier screening to your patients.