Plantar fasciitis, metatarsal tendonitis, osteochondritis dissecans, etc. may be the cause of pain in the foot after waking up in the morning. 1. Plantar Fasciitis: When suffering from plantar fasciitis, excessive inflammatory molecules will be secreted, which will stimulate the fascia of the foot and may cause localized congestion and hyperplasia, thus causing pain in the foot after waking up in the morning. 2. Metatarsal tendonitis: at night when the foot is in a state of rest, the metatarsal fascia contracts abnormally, causing a large amount of inflammatory factors to seep out, and pain on the floor after waking up in the morning will cause stimulation to the local nerves, resulting in pain on the floor after waking up in the morning. 3. Osteochondritis dissecans: usually less activity or infrequent activity, suddenly strenuous exercise or long time running, so that the foot tissue damage, causing inflammation or congestion of the periosteum, may lead to get up in the morning after feet on the ground pain symptoms. When the symptoms of pain on the ground after waking up in the morning, it is recommended to go to the hospital in time for examination and diagnosis, as soon as possible to carry out targeted treatment.