Fluid under a toenail, often caused by injury, infection, or repeated pressure, can lead to discomfort, swelling, and discoloration. This condition may appear as clear fluid, blood, or pus trapped beneath the nail, depending on the cause. Common symptoms include pain, tenderness, redness, and changes in nail appearance. In some cases, the nail may loosen or lift from the nail bed. Tre... https://unitedfootsurgeons.com/