Causes 1. Chinese medicine believes that the main causes of intermenstrual bleeding are yin deficiency, liver stagnation, damp heat, blood stasis, spleen deficiency, etc., resulting in the disturbance of the two channels of Chong Ren during the dense period and the failure of the sea of blood to fix. 2.Western medicine believes that after follicle maturation and ovulation, the estrogen level will drop significantly and individual women cannot maintain the endometrial growth due to the lower estrogen level at that time, causing local shedding of endometrium and thus a small amount of breakthrough bleeding, but in general, after ovulation, with the formation of corpus luteum, the corpus luteum secretes estrogen and progesterone, which will quickly repair the endometrium and make the endometrium change towards the proliferative phase. The endometrium is thickened and repaired and bleeding stops. Daily care 1. Keep a happy spirit during ovulation, avoid mental stimulation and mood swings, pay attention to keeping warm, avoid cold stimulation and avoid overwork. 2. Pay attention to the prevention of infection, keep the external genitalia hygienic and clean, and never have sexual intercourse during the bleeding period. 3, ovulation to wear soft, cotton, ventilated and breathable underwear, wash and change frequently, change of underwear put in the sun to dry. 4, adjust your mind, keep a relaxed and happy mood, avoid mood swings. The actual life should be regular, avoid staying up late and overworking. Dietary regimen It is not advisable to eat cold, sour and spicy stimulating food during ovulation, drink more water and keep the bowels open. The blood-heated person should eat more fresh fruits and vegetables before the period, and avoid eating onions, garlic, leeks, ginger and other things that stimulate dryness and produce heat.