I've a cat I took responsibility for a year ago. He is now 2 years old. He was 'fixed' before I got him. He was never declawed. He is usually REALLY good about not scratching furniture or things he shouldn't. Until Saturday morning. I left my closet open a crack, and he is a curious fellow, and loves the closet for some reason.
Ovarian dysgenesis is a major cause of premature menopause. Ovarian dysgenesis is seen in 30% of the cases.[3] Sex chromosome anomalies predominate as a cause. The commonest abnormality is 45X0 (Turner's syndrome). Chromosomal abnormalities are reported in 10-20% of cases involving X sex chromosomes.[3]
In cases where the ovaries are removed during the hysterectomy, this causes the body to almost immediately go into premature menopause (only if the woman has not already gone through menopause). This is called surgical menopause and occurs because of the sudden loss of estrogen hormones. The symptoms that are experienced during surgical menopause are often more severe and frequent than regular menopause. Usually these symptoms are controlled using hormone replacement therapy (HRT).