Doctors said i need to lose all the grit in my plantar fasciitis of i don't what will happen. it painful and there a lot of grit thankyou.

Mixed message: Plantar fasciitis is an inflammation of the tough lining of the bottom of the foot. It can be caused by trauma or from wearing bad fitting shoes. "grit" can not be felt or seen on x rays so i suspect the doc is guessing at a cause. A podiatrist or wound specialist is trained to do a more appropriate diagnosis and recommend simple treatments. Second opinion time.

Stretch: There's no medical te for "grit" but it may be your doctors own made up term for scar tissue or tightness.

Thickening of fascia: Plantar fasciitis is an inflammatory condition of the fascia usually where it attaches to the heel bone. It is thickened on MRI as well as ultrasound. The "grit" your doctor is probably referring to is the thickened tissue and granulation tissue that is trying to heal it. The condition is in some self limiting. With therapy stretching , formal therapy 85-95% resolve . Some require more invasive rx.