What Does It Mean When Your Fingers Swell Up For No Reason?

What Does It Mean When Your Fingers Swell Up For No Reason? In general, swollen fingers can be caused by overall fluid retention, such as during premenstrual syndrome or pregnancy. If just one finger is swollen, the possible causes include trauma, infection, or inflammatory conditions, such as arthritis. Can dehydration cause swollen fingers? Dehydration does