Primary lymphedema is sometimes associated with other genetic disorders as well, like Turner syndrome.

原发性淋巴水肿有时也与其他遗传疾病有关，例如Turner综合征。

For that reason, most people develop primary lymphedema early on, before age 35, which is called lymphedema praecox.

因此，大多数原发性淋巴水肿患者的发病年龄在35岁前，称为早发性淋巴水肿。

When someone develops primary lymphedema later on, usually after age 35, it's called lymphedema tarda.

若在35岁后患病，则称为迟发性淋巴水肿。

Primary lymphedema, on the other hand, is when there isn't some other disease or factor that leads to lymphatic obstruction.

而原发性的淋巴水肿没有其他导致淋巴管阻塞的疾病或因素。

Usually, primary lymphedema is a congenital condition that's been present since birth, maybe as a result of part of the lymphatic system not developing right.

通常原发性淋巴水肿是自出生以来就存在的先天性疾病，可能由部分淋巴系统发育异常导致。