Take the short-acting contraceptive pill as an example, if taken frequently, it may cause the following problems clinically: 1. Because the short-acting contraceptive pill is a combination of estrogen and progestin, after taking it, it will cause the endometrium to become thinner, so it will lead to a decrease in menstruation and even the possibility of amenorrhea. 2. Because the short-acting contraceptive pill contains estrogen, after taking it, it will cause water and sodium retention in the body, which will lead to 3. Because of the effect of estrogen, it will lead to discoloration on the face, which is the clinical consequence of taking birth control pills frequently. In addition, if you often take the emergency contraceptive pill, the consequences will be more serious, it may cause damage to liver and kidney function, which will lead to serious endocrine disorders and cause menstrual disorders.