L2-HGA: Why Testing Matters
L-2-Hydroxyglutaric Aciduria (L2-HGA) is an inherited metabolic disease documented in Staffordshire Bull Terriers. It affects the nervous system and can produce serious neurological signs including abnormal movement, tremors, behavioral changes and seizures.
The important practical fact for breeders is that L2-HGA is inherited as an autosomal recessive condition and a DNA test is available. With known genetic status, affected puppies can be avoided through responsible mating decisions.
A carrier is not the same thing as an affected dog. Carriers can be clinically normal, but two carriers should not be bred together because that pairing can produce affected puppies. Genetic testing allows breeders to make decisions using information instead of assumption.
Ask to see the evidence
If a dog is directly DNA tested, ask for the laboratory/OFA record. If a breeder relies on clear-by-parentage, ask to see the documented clear status that supports the pedigree chain. “It has never been in my line” is not genetic evidence.
Why the story below remains here
The first-person account that follows was shared by Emma Lewis about living with an L2-HGA-affected Stafford. It is preserved in her own words because disease is not only a diagram of inheritance. It is a dog, a family and decisions people never wanted to face.
Her story predates today’s widespread access to and expectations around DNA testing. That is exactly why it still matters.
[KEEP EMMA LEWIS’S EXISTING FIRST-PERSON STORY HERE, ATTRIBUTED AND UNEDITED EXCEPT FOR TYPOGRAPHICAL FORMATTING.]