He said that he had hurt himself on a wall or that he had fallen.
But there was probably another reason
for the wounded and bandaged shoulder.

With a somewhat abrupt movement,
to bring down from a shelf some
photographs that he wanted to see closely,
the bandage was untied and a little blood ran.

I bandaged the shoulder again, and while bandaging it
I was somewhat slow; because it did not hurt,
and I liked to look at the blood. That
blood was a part of my love.

When he had left, I found in front of the chair,
a bloody rag, from the bandages,
a rag that looked in belonged in garbage;
which I brought up to my lips,
and which I held there for a long time --
the blood of love on my lips.

Constantine P. Cavafy

http://www.poemhunter.com/poem/the-bandaged-shoulder/