I talked with my father.
When I was just about to finish eating a dinner, my father came back from his work.
Then I noticed that his arms looked a bit bigger than before. I told him about it.
He said "Maybe it's because of my kidney. Its condition is not so good these days."
"Is it difficult to make it better condition?" I asked.
He said "What I can do is to maintain the <em>status quo</em>."
I wish his condition will could be better.