What is the reason for irregular menstruation?

Patient's question:

Description of the condition: How to regulate the menstrual cycle using traditional Chinese medicine and Chinese herbal medicine
History of treatment and effectiveness:
My period is delayed, and the doctor prescribed Qining Progesterone. However, I would like to seek help in the field of traditional Chinese medicine and Chinese herbal medicine:
How to regulate the menstrual cycle using traditional Chinese medicine and Chinese herbal medicine

Doctor's answer:

1、Smoking
Nicotine in tobacco can reduce the secretion of hormones, thereby interfering with physiological processes related to menstruation and causing menstrual disorders. Women who smoke more than one pack of cigarettes per day have a three times higher risk of menstrual disorders compared to non-smoking women.
2、Stress
Women of reproductive age who are under long-term stress can have their pituitary gland function inhibited, leading to the cessation of ovulation and estrogen secretion by the ovaries, which in turn causes menstrual disorders. Similarly, long-term emotional suppression or poor mood can also result in menstrual disorders.
3、Exposure to Cold
Some women pay little attention to keeping warm during their period, such as eating ice cream or cold desserts during menstruation, or wearing very thin clothing in winter for aesthetic reasons. Unaware of the consequences, these behaviors can cause blood vessels in the pelvic cavity to constrict, leading to ovary dysfunction and reduced menstrual flow, or even amenorrhea.
4、Electromagnetic Waves
Modern life is inseparable from appliances such as mobile phones, computers, DVD players, electric wok cookers, vacuum cleaners, and refrigerators. However, many women are unaware that various household appliances and electronic devices emit different types of electromagnetic waves during use. Long-term exposure to these waves can affect women's endocrine and reproductive functions, leading to endocrine disorders and menstrual disorders.