Menstruation is the second characteristic of girls, and the arrival of menstruation indicates that girls have fertility. How to avoid bad menstruation is also a concern for girls. Some girls may not know that their menstruation is coming and may feel embarrassed if they are not prepared. So, how to determine if menstruation will come? What are the reasons for menstruation? Let's take a look together.
How to determine if menstruation will occur
Firstly, many healthy women may also experience discomfort and changes in their temperament, knowing that they are about to have their period, such as pelvic heaviness, lower back pain, headache, breast swelling, edema, irritability, and irritability, known as premenstrual discomfort. Generally mild and does not require treatment. But there are also some women with severe premenstrual symptoms that affect work and life, known as premenstrual syndrome.
Secondly, premenstrual syndrome generally appears 7-14 days before menstruation, with the most severe symptoms occurring 2-3 days before menstruation. Symptoms disappear or significantly alleviate after menstruation. Discomfort is multifaceted and varies from person to person. Some women have more prominent edema, some women have more obvious breast swelling and pain, and some women mainly have mental symptoms. Sometimes, several symptoms coexist, so the severity varies.
Thirdly, edema usually appears one week before menstruation, or it can worsen before menstruation even if there is edema during normal times. Due to swelling and weight gain. Accompanying edema may also include headaches, runny nose, heaviness in the lower limbs, bloating, constipation, etc. Breast pain can occur before menstruation or after menstruation. There are small nodules in the breast, which cause pain when touched. After menstruation, it is easy, but the swelling and pain will reappear before the next menstrual period.
What are the reasons for menstruation
As the ovaries undergo changes, the endometrium is also affected by them and undergoes corresponding periodic changes. Estrogen causes thickening of the endometrium, an increase and enlargement of endometrial cells, and the small arteries within the stroma become more tortuous and spiral shaped, known as the proliferative endometrium. After ovulation, due to the combined action of estrogen and progesterone, the endometrium undergoes edema, and the glands produce a large amount of mucus and glycogen. The thickness of the endometrium increases from 1 millimeter to 6 millimeters, known as secretory endometrium.
If the egg released at this time is fertilized, the fertilized egg is transported through the fallopian tube to the uterus for development, known as pregnancy. The pregnant tissue synthesizes a type of chorionic gonadotropin, which supports the continued development of the corpus luteum of the ovary; If the egg is not fertilized, around 14 days after ovulation, the corpus luteum will atrophy and stop secreting estrogen and progesterone. At this time, the blood vessels in the endometrium will contract, the endometrium will die and fall off, causing bleeding and forming menstruation.
From this perspective, there are various methods to determine the arrival of menstruation, simple and straightforward. Interested girls can take a look. Menstruation is coming, and girls are about to enter puberty, starting the most beautiful spring of their lives. During menstruation, girls need to adjust their mentality and be positive, happy every day.
