The main cause of foot pain after standing all day is heel pain or plantar fasciitis. The pain is usually caused by localized sterile inflammation of the soft tissues such as tendons, fascia and ligaments on the bottom of the foot after prolonged and repeated irritation. Common causes of heel pain include heel fat pad inflammation or atrophy and plantar fasciitis. When the heel is subjected to trauma or prolonged standing and sustained injury, the pad becomes inflamed and the metatarsal surface of the heel develops pain, swelling, and pressure pain, and sometimes the subheel bursa can be palpated. For treatment, you should first avoid standing for long periods of time. Soft-soled sports shoes should be worn, and insoles (cup holders and cushion pads) can also be taken to avoid pressure on the plantar fascia. For long-term recurrent pain, oral non-steroidal anti-inflammatory and analgesic drugs, local hot compresses and acupuncture can be used to improve local blood circulation by soaking the feet with blood-vitalizing and pain-relieving herbs, thus relieving symptoms. The disease rarely requires surgery. For the disease with obvious pressure points and severe pain, closure is an extremely effective treatment method.