If the patient feels pain in the sole of the foot after waking up in the morning, there may be plantar tenosynovitis, fatigue fracture of the foot, infection-type lesions, as follows: 1. plantar tenosynovitis: some patients have such symptoms due to plantar tenosynovitis, such patients often walk long distances and wear shoes that are too hard, resulting in inflammation or strain of the plantar tendon membrane, and the patient will have the above symptoms. 2. Fatigue fracture of the foot: Some patients have such symptoms due to fatigue fracture of the foot, such as patients often walk with heavy loads, which may cause fatigue fracture of the metatarsal bone, after which there will be pain in the process of sudden weight-bearing in the morning. 3, infection-type lesions: Some patients will also have the above symptoms due to some infection-type lesions of the foot, such as corns.