Common signs that you may need hormone replacement therapy for men and women include but are not limited to: - Hot flashes - Night sweats - Vaginal dryness - Any pain, itching or even burning during intercourse - Bone loss - A low sex drives - Mood swings or changes - Irritability - Sleep issues - Weight gain - Exhaustion - Muscle weakness - Constipation or overly frequent bowel movements - Increased thirst or hunger - Hair thinning, and many more Some common causes of hormonal imbalance may include: - Medications - Cancer treatments - Tumors (either cancerous or benign) - Eating disorders - Stress - Injury or trauma, and Pituitary tumors There may be other conditions that can be caused by hormone deficiency which could benefit from hormone replacement therapy including menopause, surgical removal of your ovaries, early signs of menopause, primary ovarian insufficiency, and other hormone conditions like breast cancer, infertility and endometrial hyperplasia which is the overgrowth of the lining of the uterus. You should consult a doctor first unless these symptoms could be a cause of something else, however menopause is mainly the cause for these symptoms and is a normal part of aging.