What Are The Causes Of A Lump On The Side Of The Foot?

Foot lumps of all kinds are localized or protuberance areas of swelling. They are often known as nodules, tumors, cysts, contusions, and bumps. Lump on the side of the foot has several causes such as severe trauma, tumor, inflammation, or infection.

Another important thing to know here is that it’s the cause that determines the number of lumps that develop. They may be multiple or single, firm or soft, painless or painful. These lumps have the ability to remain the same in size or grow rapidly.

So let’s make sure that we have all the information we need about this particular condition. Knowing what it goes a long way in treating the ailment or disease in a much better manner.

The chances are that it may just be the normal anatomy of your foot. But some lumps develop as a result of abnormal processes. Let’s find out more, shall we?

Lump On The Side Of The Foot

Lump on The Side of The Foot

Many people find a bony prominence on the side of the foot. This particular region is the base of your metatarsal bone. The lump forms right next to the fifth toe. It is known as the styloid process of the fifth metatarsal.

The primary cause of the condition and the swelling accompanied by it is an injury. Children till the age of 12 and 14 have growth plates attached to this particular region. And an injury to the growth plate is something that needs immediate and proper medical care.

The metatarsal bone also has an incredibly powerful tendon attached to it. When your foot is subjected to injury, such as an ankle sprain, the muscle attempts to keep your foot from getting damaged further or twisting. The condition can be extremely painful, which indicates either a bone or tendon injury.

More often than not, a fracture may develop. And if this fracture displaces or misaligns the bone, then you might need surgery. Otherwise, a knee cast goes a long way in treating the condition. This type of injury usually takes about six weeks to heal.

Lump on Top of The Foot

The extensor digitorum muscle is the part located behind the styloid region and a little over the top area of your foot. For some people, this muscle is comparatively larger in size. Another cause of the lump on top of the foot can be fatty deposits. These tend to make the spot appear larger.

The formation of ganglion is quite common in this particular area. The condition gives rise to inconsistent swelling. The best way to diagnose ganglion is by doing an MRI.

The treatment depends on whether the foot ailment is painful or not. Painful ganglion requires the doctor to drain all the fluid using a needle. Another way to treat the condition is to remove it surgically.

What Causes Bumps on Top of the Feet? 

Lump on The Fifth Toe

Now that we’ve discussed everything you need to know about the lump on the side, it’s time to talk about the fifth toe. More often than not, bumps in that area are a result of hammertoes. They are structural deformities that affect your fifth toe, which causes the joint to swell up.

When such a foot ailment develops, wearing closed shoes becomes a painful experience. The most efficient way to treat a hammertoe is to use padding in shoes to minimize the pressure. You can also consult a podiatrist, who will trim the thickened skin. You might also have to straighten the affected toe surgically.

Lump Behind the Fifth Toe

A lump in this area is called tailor’s bunion. The condition is progressive and is usually the cause of an abnormal foot function. And it’s important to wear proper footwear during such times. Failing to do so gives rise to bursa. What a bursa does is create inflamed tissue to cover the bony prominence. It has a spongy quality and can be extremely painful.

You can treat a bursa with the help of cortisone injections. These are responsible for reducing inflammation and swelling. Padding the affected region is also another effective way of treating the condition.

For severe tailor’s bunion, most podiatrists recommend surgical correction. This does an excellent job of eliminating the pain and prominence.

How to Treat the Bump by the Little Toe (Tailor’s Bunion)?

Lump on Heel of Foot

Lumps also develop on the heel of the foot, and you can spot them properly only when you’re standing. These are small and soft bumps known as piezogenic papules. More often than not, the condition is not painful, so treatment is not necessary. There is no need to remove piezogenic papules surgically.


So now you know what it means to have a lump on the side of the foot. The condition is nothing to worry about, even when painful. The best thing you can do is visit your doctor or podiatrist to know more about it and how to treat it.

I have also discussed other additional lumps that form on top of the foot, on the fifth toe, behind the fifth toe, and on the heel. The more reliable information you have about these things, the better you can assess them, right?

Did you find the content useful? Did it help in answering your questions about this particular foot ailment?

Please don’t forget to leave your feedback in the comments section below. We would love to hear your thoughts.


1. http://www.podiatrynetwork.com/document_disorders.cfm?id=121

2. http://footdoc.org/lumps-and-bumps-on-the-foot/

3. https://www.healthgrades.com/symptoms/foot-lump

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