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How can I get rid of a muscle lump on the inside arch of my feet.

I have a lump on the inside arch of one of my feet these seemed to appear after getting a few bad foot cramps but is still there. Now it seems like my foot will cramp up more often.
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Featured Answer

116 UpVoted this answer
There is a muscle on the inside arch of your foot that runs from the inside of the heel bone to the inside of your big toe. This muscle pulls your big toe in--toward the midline of your body. If you are sure that the bump is in a muscle, the abductor hallucis muscle is the most likely candidate. It could have been injured and now wants to cramp. If the bump you see is bluish in color it could be a collection of blood from the injury--a hematoma. Massage will help the body reduce this. Another possibility is an injury to the navicular bone in the same general area. This would feel harder than the muscle and will not go away with time or massage. Finally, and least likely if the bump is truly on the inside of the arch and not on the bottom of the arch, is a condition called plantar fibromatosis. This would nothing to do with a muscle or bone but rather a growth in the plantar fascia. This will also not respond to massage and time.
Gary Cramer
108 UpVoted this answer
Likely, from your description, this is plantar fibromatosis. Over the last few years new medications have come out that dissolve the lump without surgery. The formulation is a 15% verapamil cream in a proprietary vehicle that penetrates the skin. It's a compounded Rx, but it works exceptionally well.
Sloan Gordon
63 UpVoted this answer
Based on the description and the location, I'd say you have a plantar fibroma. A plantar fibroma is a benign growth that sometimes develops within the plantar fascia. It is not a "muscle lump" and it is not going away unless you have it surgically removed. You may be getting foot cramps from walking around on this lump in your arch. Try wearing good shoes with a cushioned insole to relieve the irritation on the area. A custom orthotic can be made with an accommodation for the lesion to offload it.
Thomas R. Komp
47 UpVoted this answer
There are a number of things this could be. It may be extra muscle tissue, a cyst, or a tumor. It should be checked out by a Podiatrist. X-rays, ultrasound, or an MRI May be needed to be sure it is nothing serious.
Richard Eby
43 UpVoted this answer
Lumps felt on the inside arch of the feet can be a variety of things. They can be caused by soft tissue swelling, sacs of fluid, fatty tissue, and nerve, vessel or muscle enlargements. With your symptoms of cramping, this could be a result of a muscle or nerve spasm. I would question your medical history and if there is a previous history of trauma or injury to foot. Conservatively, I would recommend trying warm heat to the area and massage if there is pain but should be evaluated by a podiatrist.
Maggie U. Solimeo
36 UpVoted this answer
it may be representative of a fibroma, lipoma , ganglion , or just a thickness of the muscle belly or fascia. would be best if checked via ultrasound, or MRI to gain further info on the size shape and density. as always, it is best if you check with your doctor
Joel M. Wilner
32 UpVoted this answer
Without seeing the foot it is quite challenging to answer your question. Having said that how can you be so sure it is a muscle lump. If it is indeed a muscle that you see you have torn your fascia for the muscle to herniate through. Generally hard lumps in the fascia are fibromas. These fibromas are not related to cramping. These lumps are also generally not painful.
Subodh K. Choudhary
29 UpVoted this answer
if its hard its probably a fibroma in a plantar (bottom of foot) tendon. if its soft it is probably a lipoma...a fat blob. both will require surgery to remove. could be many other things though. go see a foot specialist asap.
Joseph Smith
25 UpVoted this answer
Hi Anonymous

Please get in to see a podiatrist so the podiatrist can get a detailed history of your complaint, do a lower extremity exam, give you an assessment and treatment options.

Without examining your foot and hearing that it is unilateral, it sounds as the abnormal and repeated and continuous movement of cramping may have been a factor in the cause of your current description. It is likely a benign growth such as a fibroma, lipoma, or cyst. Plantar fasciitis may be a cause. The cramping itself may have an underlying metabolic imbalance of electrolytes. It may be due to an underlying pathomechanics such as flat feet. I would recommend being checked out by a podiatrist who would be able to

actually examine your feet, get a biopsy if needed, provide an injection if needed and/ or order diagnostic tests such as an X-ray, ultrasound and MRI, as well as provide professional education and treatments to alleviate your pain.

Thanks.

I hope this helps.
Melody Chong
20 UpVoted this answer
This lump may be due to a previous tear of the plantar fascia ligament or a muscle. If it is bothersome then it can be surgically removed. A full examination by a podiatrist is necessary to determine the tissue involved. A MRI scan may also be necessary if the mass is getting larger. Most lumps or masses of the foot are benign.