毒性弥漫性甲状腺肿(Graves病,GD)合并周期性麻痹(简称“周麻”),是甲亢性肌病的一种类型。本病多见于亚洲国家,我国和日本的发生率约为1.8％～ 8.8％,西方国家较少见,好发于20～40岁的青壮年男性,男女之比约为70:1。GD合并周麻发作时常伴血钾过低,以下肢对称性麻痹为多见,且常以周麻为 Graves’ disease (GD) combined with periodic paralysis (“Zhou Ma”) is a type of hyperthyroidism. The disease more common in Asian countries, China and Japan, the incidence of about 1.8% ~ 8.8%, less common in Western countries, mainly in 20 to 40 years old young men, male to female ratio of about 70: 1. GD combined with weekly marijuana episodes often accompanied by low serum potassium to lower extremity symmetry paralysis is more common, and often Zhouma