Painful hard lump on bottom of foot
You step down and feel a sharp point, like a small stone stuck in your shoe. The lump is hard and often flat, pressed in by your own weight. It may sit on the heel, the ball of the foot, or under a toe.
One common cause is a plantar wart. That is a wart on the sole of the foot, caused by a virus. The virus gets in through tiny cracks in the skin, often from wet floors in pools, gyms, or showers.
On the sole, a wart grows inward instead of outward, so it hurts when you stand. You may see tiny black dots in the middle of it. A callus, which is thick hard skin, can look much the same, but it has no dots and rarely hurts in one sharp spot.
When to see someone
See a doctor or a foot doctor if you have diabetes, nerve damage, or poor blood flow in your feet. Get it checked if the lump bleeds, leaks pus, or the skin around it turns red and hot. Also go if it grows fast, changes color or shape, or makes you limp, and never try to cut it out yourself.
Below is a list of home and folk remedies that people have used for warts. We are not saying any of them will fix your foot. Each one carries a grade that shows how much research stands behind it, so read the grade before you read the remedy.



