Suffering from//having an ailment

I would say the second one should be 'She has an aliment'

I agree with Skittles.

Thanks, my helpful friends.

Then, are the following synonymous?

She suffers from an ailment.

She has an ailment.

You could use them that way and be safe.

I think they're both a little unnatural. The ailment is the specific disease, or sickness, or illness, or malady from which she suffers.

My wife is sick / ill. (question) What ails her? (old fashioned) She's suffering from pneumonia.

You would never say, "She's suffering from an ailment."

T

Edit. Instead of saying, "My wife is sick," you could well say, "My wife is suffering from an ailment," or "My wife has an ailment." This is not redundant, because she might instead be suffering from a depleated bank account.

But once it's been established that she's sick, "She has an ailment" is redundant.

Edit. (This is too hard!)
I only wish to warn you that in reply to questions about someone's health, "she's suffering from a malady" can be redundant.

As an opening remark, "How's Jane?" (reply) "She's suffering from a malady." is no problem.