Tuesday, 07 November 2023 00:00

Types of Flat Feet

Flatfoot is characterized by the loss of the foot's arch, leading to an abducted forefoot and a hindfoot deformity. The two types of flat feet are flexible and rigid flatfoot. In flexible flatfoot, the arch appears when not bearing weight, but disappears when weight is applied. Conversely, in rigid flatfoot, the arch is consistently absent. Flexible flatfoot often appears in young children and may self-resolve. Its frequency in adults is unclear, due to frequent misdiagnosis. The disorder can be either congenital or developed over time. Flexible flatfoot results from ligament laxity, while adult-acquired flatfoot is attributed to posterior tibial tendon insufficiency, potentially caused by factors like obesity, neuropathy, or trauma. Rigid flatfoot results from bone irregularities or arthritis. A missing foot arch and deformities are noticeable upon examination. If you have flatfoot and it is causing you discomfort, it is suggested that you make an appointment with a podiatrist who can determine which type of flat foot you have, in addition to providing appropriate relief and treatment options.

Flatfoot is a condition many people suffer from. If you have flat feet, contact one of our podiatrists from Princeton Foot & Ankle Associates. Our doctors will treat your foot and ankle needs.

What Are Flat Feet?

Flatfoot is a condition in which the arch of the foot is depressed and the sole of the foot is almost completely in contact with the ground. About 20-30% of the population generally has flat feet because their arches never formed during growth.

Conditions & Problems:

Having flat feet makes it difficult to run or walk because of the stress placed on the ankles.

Alignment – The general alignment of your legs can be disrupted, because the ankles move inward which can cause major discomfort.

Knees – If you have complications with your knees, flat feet can be a contributor to arthritis in that area.  


  • Pain around the heel or arch area
  • Trouble standing on the tip toe
  • Swelling around the inside of the ankle
  • Flat look to one or both feet
  • Having your shoes feel uneven when worn


If you are experiencing pain and stress on the foot you may weaken the posterior tibial tendon, which runs around the inside of the ankle. 

If you have any questions please feel free to contact one of our offices located in Princeton and West Windsor, NJ . We offer the newest diagnostic and treatment technologies for all your foot and ankle needs.

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