David does not have hereditary hemorrhagic telangiectasia (HHT). It has shaped his family anyway.

It shaped his father, who lived with chronic nosebleeds without ever understanding the full extent of the condition. It shaped both of his sisters. For David, HHT is not an abstraction or a statistic about rarity. It is family history, carrying the inseparable weights of love and worry.

Visibility is crucial with HHT. So little is known about it and the consequences of that can be quite serious.

David

His father knew the nosebleeds were connected to HHT. He did not know about arteriovenous malformations, or how dangerous they can be in vital organs, or what medicine would later make possible. He died suddenly at 68 of an aneurysm that David believes was related.

Years later the family lost David’s 24-year-old nephew while he was awaiting a heart and lung transplant. Everyone had believed he had asthma. He had pulmonary hypertension caused by HHT. He was young, funny, and a gifted musician.

The saddest day of my life was the day my 24-year-old nephew died.

David

The people who hold a family together

Through all of it, David says, his mother was the family’s steady center. She did not have HHT. She became a caretaker in every sense: present at home, at appointments, and in hospital rooms, providing practical help and emotional ballast. She worried, and she did not complain.

She was also, David remembers, a master at getting blood stains out of clothes.

It is a small detail carrying a larger truth. HHT does not only affect the person diagnosed. It changes the household, the rhythm of family life, and what support has to look like. It turns relatives into advocates, drivers, researchers, emergency contacts, and steady hands.

David talks about HHT because his family’s story is not only one of loss. His surviving sister is living evidence of what changes when the condition is recognized and treated by people who know it.