2. Dermatology: various types of tinea and allergic skin diseases. It not only induces urticaria and contact dermatitis, but also easily aggravates the condition.
3, ophthalmology: acute conjunctivitis, especially in the swimming pool, the speed and scope of infection is amazing. Even healthy people should avoid swimming in the swimming pool in the popular season.
4, Otolaryngology: Whether it is chronic or acute otitis media, because water enters the inflamed middle ear, the condition is aggravated, even affecting hearing, and may even spread to cause encephalitis.
5. Need to check whether there are infectious diseases such as tuberculosis, dermatosis and pinkeye.
Extended data:
1. Children must swim under the guidance of their parents (guardians). Swimming alone is the most prone to problems. If your companion is not a parent (adult), it is difficult to guarantee that you can get proper help when you are in danger. (taboo for children)
People who are sick should not go swimming. Patients with chronic diseases such as otitis media, heart disease, dermatosis, liver and kidney diseases, hypertension, epilepsy and pinkeye, as well as those with colds, fever, mental fatigue and physical weakness, should not go swimming, because these patients are not only prone to aggravate their illness, but also prone to cramps, accidental coma and life-threatening.
3. After taking part in strong physical labor or strenuous exercise, you can't jump into the water to swim immediately, especially when you are sweating or fever. Otherwise, it is easy to cause cramps and colds.
4, cold, illness, physical discomfort or weakness, after meals, fasting, drinking alcohol is not suitable for swimming.
5. Polluted (poor water quality) rivers, reservoirs, places with rapids, the intersection of two rivers and lakes with gaps are not suitable for swimming. Generally speaking, all rivers and lakes with unknown water conditions are not suitable for swimming. Bad weather such as thunderstorm, strong wind and sudden change of weather is not suitable for swimming.
6. It is best to experience the water temperature before entering the water. If the water temperature is too cold or too hot, try not to rush into the water. The temperature of the pool water has an influence on blood circulation, heart, blood pressure, respiration, metabolism, human skin and muscles.
7. Before launching, do warm-up activities on the shore, warm up for 10 to 15 minutes, and exercise joints and muscles in all parts. Otherwise, it is easy to cause muscle injury or other accidents if you suddenly engage in more intense activities. Lift your legs, squat, and stand up.
References:
Baidu encyclopedia-swimming