Flat foot occurs when the arches on the inside of your feet are flattened, allowing the entire soles of your feet to touch the floor when you stand up.
Flat feet can occur when the arches don’t develop during childhood and is generally common and a painless condition. In other cases, flat feet develop after an injury or from the simple wear-and-tear caused by the stresses of age.

Flat feet can sometimes contribute to problems in your ankles and knees because the condition can alter the alignment of your legs. Even if you aren’t experiencing pain, treatment may be necessary due to the long term effects that flat feet can have on your lower extremity.

Most people experience no signs or symptoms associated with flat feet. However, some people with flat feet experience pain, particularly in the heel or arch area. Pain may worsen with activity, and swelling along the inside of the ankle may also occur which may be due to weakening of the tendon that supports your arch. This may cause stretching or tearing of the tendon which can result in dysfunction of the tendon.

Factors that can increase your risk of flat feet include:

  • Obesity
  • Injury to your foot or ankle
  • Rheumatoid arthritis
  • Aging
  • Diabetes

If you have questions about flat foot or would like to schedule an appointment, please don’t hesitate to contact one of our medical professionals today!

Cited from: https://www.mayoclinic.org/diseases-conditions/flatfeet/symptoms-causes/syc-20372604