![]() The egg is released.įinger-like structures called fimbriae sweep the egg into the neighboring fallopian tube. The wall of the ovarian follicle ruptures at the surface of the ovary. The pituitary gland in the brain stimulates one of the ovaries to release an egg. In preparation for ovulation, the lining of the uterus, or endometrium, thickens. It often happens about midway through the menstrual cycle, although the exact timing may vary. Ovulation is the release of an egg from one of the ovaries. A membrane or wall may be present in the vagina that blocks the outflow of blood from the uterus and cervix. An obstruction of the vagina may prevent visible menstrual bleeding. Because the reproductive system didn't develop fully, menstrual cycles aren't possible later in life. Sometimes problems arise during fetal development that lead to missing parts of the reproductive system, such as the uterus, cervix or vagina. Uterine scarring prevents the normal buildup and shedding of the uterine lining. Asherman's syndrome, a condition in which scar tissue builds up in the lining of the uterus, can sometimes occur after a dilation and curettage (D&C), cesarean section or treatment for uterine fibroids. Problems with the sexual organs themselves also can cause amenorrhea. But, for some women, the ovarian supply of eggs diminishes before age 40 and menstruation stops. A noncancerous (benign) tumor in your pituitary gland can interfere with the hormonal regulation of menstruation. An overactive thyroid gland (hyperthyroidism) or underactive thyroid gland (hypothyroidism) can cause menstrual irregularities, including amenorrhea. PCOS causes relatively high and sustained levels of hormones, rather than the fluctuating levels seen in the normal menstrual cycle. Many types of medical problems can cause hormonal imbalance, including: Regular menstrual periods usually resume after your stress decreases. Ovulation and menstruation may stop as a result. Mental stress can temporarily alter the functioning of your hypothalamus - an area of your brain that controls the hormones that regulate your menstrual cycle. Several factors combine to contribute to the loss of periods in athletes, including low body fat, stress and high energy expenditure. Women who participate in activities that require rigorous training, such as ballet, may find their menstrual cycles interrupted. Women who have an eating disorder, such as anorexia or bulimia, often stop having periods because of these abnormal hormonal changes. ![]() Excessively low body weight - about 10% under normal weight - interrupts many hormonal functions in the body, potentially halting ovulation. Sometimes lifestyle factors contribute to amenorrhea, for instance: MedicationsĬertain medications can cause menstrual periods to stop, including some types of: Contraceptives that are injected or implanted also may cause amenorrhea, as can some types of intrauterine devices. Even after stopping birth control pills, it may take some time before regular ovulation and menstruation return. Some people who take birth control pills (oral contraceptives) may not have periods. Natural amenorrheaĭuring the normal course of your life, you may experience amenorrhea for natural reasons, such as: Some are normal, while others may be a side effect of medication or a sign of a medical problem. Standard fit offers a relaxed and easy feel.The ovaries, fallopian tubes, uterus, cervix and vagina (vaginal canal) make up the female reproductive system.Īmenorrhea can occur for a variety of reasons.Woven flag label at the back-right hip and the embroidered Futura logo bring in brand rep.Scalloped side seams help you move with ease.Side seam pockets provide quick small-item storage.Penny mesh pleat on the back pocket helps with sand and water runoff.The flap back pocket with an internal reinforced bungee loop enables secure storage.Elasticated waistband and drawcord provide a personalized fit.Athletic cut hits right above the knee for ease of movement.Nike Sportswear SPE Woven LND Flow Shorts features: Whether you're chilling on the couch or gearing up for a dive, these Nike Sportswear SPE Woven LND Flow Shorts keep you comfortable through it all. Crafted with smooth and lightweight woven fabric in a standard fit and lined with polyester, these shorts are a must-have in your summer wardrobe. ![]() An easy go-to for adventures of all kinds – the Nike Sportswear SPE Woven LND Flow Shorts are all about comfort and mobility.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |