Atrophic vaginitis is a common cause of vaginal bleeding in postmenopausal women. It is caused by a decrease in estrogen levels, which leads to thinning and drying of the vaginal tissue.

Ectopic pregnancy is a life-threatening condition that occurs when a fertilized egg implants outside the uterus. Symptoms of ectopic pregnancy include abdominal pain, vaginal bleeding, and nausea and vomiting.

Chlamydia is the most common cause of pelvic inflammatory disease (PID). PID is a serious infection of the female reproductive organs that can lead to infertility and other health problems.

Ovarian torsion is a condition that occurs when the ovary twists on its supporting ligament. Symptoms of ovarian torsion include sudden onset of severe abdominal pain, nausea and vomiting, and fever.

Uterine atony is the most common cause of postpartum hemorrhage. It is a condition in which the uterus fails to contract properly after childbirth, leading to excessive bleeding.

Preeclampsia is a serious condition that can occur during pregnancy. Symptoms of preeclampsia include high blood pressure, proteinuria (protein in the urine), and edema (swelling).

Pregnancy is the most common cause of amenorrhea. Hypothalamic amenorrhea, PCOS, and menopause are also common causes of amenorrhea.

Endometriosis is a condition in which tissue that normally lines the uterus grows outside the uterus. Symptoms of endometriosis include pelvic pain, infertility, and abnormal menstrual bleeding.

Candida albicans is the most common cause of vulvovaginal candidiasis (yeast infection). It is a type of fungus that can cause itching, burning, and discharge.

Fishy odor is a common symptom of bacterial vaginosis (BV). BV is a common vaginal infection caused by an overgrowth of bacteria in the vagina.

Escherichia coli is the most common cause of urinary tract infections (UTIs) in women. UTIs are infections of the urinary tract, which includes the bladder, urethra, and kidneys.

Sexually transmitted infections (STIs) are infections that are spread through sexual contact. Symptoms of STIs can include genital ulcers, genital warts, pelvic pain, and other symptoms.

Human papillomavirus (HPV) is the most common cause of cervical cancer. HPV is a sexually transmitted infection that can cause genital warts and cervical cancer.

Ovarian cancer is a type of cancer that starts in the ovaries. Symptoms of ovarian cancer can include abdominal bloating, pelvic pain, weight loss, and other symptoms.

Endometrial cancer is the most common type of uterine cancer. It is a cancer that starts in the lining of the uterus.