I just noticed a lump on the bottom of my foot. It is centered in the middle of my arch and about the size of a quarter. It does not hurt but seems inflamed. My other foot has a small bump in the same spot. Also not at all tender. I work on my feet all day, on concrete. Is there a muscle in the center of the foot that can get overworked?! I wear quality shoes with good support.Much thanks. My dad was a family Physician, graduated Univ. of Oregon around 1954.  I miss being able to consult him.Sincerely, Tracy Morrow
Hello rearward welcome to Liberate.come have evaluated your query thoroughly.* This is in relation with bursa cyst involving the arch of the foot , with redness indicative of inflammatory changes. Hope this clears your query. Wishing you fine recovery. Welcome for any further assistance. Regards dear take care.