Family members are always sick may be due to poor environmental hygiene, malnutrition, genetic factors and other causes. 1. Poor environmental hygiene: the home does not pay attention to hygiene, the environment of bacteria and viruses breeding, easy to lead to recurrent infections, such as a variety of infectious diseases, parasitic diseases, common respiratory, gastrointestinal, genitourinary tract infectious diseases, etc., easy to recurrent infections, cross-infections, the primary reason for frequent illnesses. 2. Malnutrition: Inadequate intake and excessive consumption can cause malnutrition. Including the lack of basic nutrients caused by hypoproteinemia, the lack of vitamins will cause low immunity, calcium, phosphorus, zinc and other trace elements will trigger metabolic disorders. 3. Genetic factors: also a common cause of recurrent illness. Most of the hereditary diseases lack effective treatment means, most of the symptomatic treatment-based, slightly improper lifestyle can trigger the onset of the disease. These are some of the reasons for frequent illness. Usually, you can eat more fresh fruits and vegetables, such as apples, bananas, green vegetables, etc., in order to supplement vitamins. This can be supplemented by eating more grains, lean meats, shrimp, and other foods. Family members are always sick need to go to the hospital as soon as possible, improve the relevant examination, and then targeted treatment.