People who do not have the following contraindications can participate in diving
(1) Have had middle ear surgery or corneal surgery
(2) Have a history of lung injury, especially those with spontaneous pneumothorax
(3) Severe pulmonary obstructive disease, such as chronic emphysema or severe asthma
(4) Alveoli have congenital diverticula or pulmonary blisters
(5) Those with a history of epilepsy or cramps
(6) Frequent fainting and unexplained persons
(7) People with a history of cardiac coronary artery disease, such as angina or previous myocardial infarction
(8) Red blood cell lesions, such as sickle-type red blood cell anemia
(9) Insulin-dependent diabetes mellitus
(10) Long-term alcohol abuse or drug addicts
(11) People with mental illness
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