The ears are like blocked after exercise, which may be caused by blocked Eustachian tube, foreign body in the external ear canal or circulatory disorders in the inner ear. 1. Eustachian tube blockage: After running, due to the increase of heart rate, the blood circulation of the whole body will be accelerated, which will lead to congestion of the mucous membrane inside the ear, and at the same time the volume of the nasal turbinate will be increased, which may lead to the blockage of the Eustachian tube, which will lead to the loss of equilibrium between the pressure inside the middle ear drum chamber and the external atmospheric pressure, and thus the feeling of blockage of the ear will appear. 2. Foreign bodies in the external auditory canal: If the cerumen or foreign bodies originally present in the external auditory canal are close to the eardrum after running, it is recommended to go to the hospital for treatment with the aid of professional equipment. 3. Circulation disorder of inner ear: If there is a feeling of ear blockage after exercise, it may be due to excessive exercise leading to accelerated blood circulation, expansion of capillaries in the inner ear, affecting the function of the sensorineural nerve, and a feeling of ear blockage. If the ears appear stuffy and blocked feeling after exercise, it can usually be relieved after resting. If the feeling of ear blockage occurs frequently and lasts for a long time, it is recommended to consult a doctor in a timely manner to clarify the cause of the disease and then targeted treatment.