insufficiency

In some cases, chronic venous insufficiency can also cause painful cramps, spasms and leg ulcers.

Blood tests also showed he had "initial, mild, renal insufficiency" - a kidney problem - that is "currently under control", the statement said.

Dowden had to pull out of this year's 20th anniversary series after suffering an "insufficiency stress fracture" on her shin two weeks ago.

On Wednesday, she told Strictly spin-off show It Takes Two that she has a "insufficiency stress fracture, if I've said that right, on my shin".

Apes are also threatened by the insufficiency of human efforts to protect them.