hello and welcome to healthcaremagic forum! uterine fibroids are very prevalent in women with as many as 75% having them at some stage in their lives, often undiagnosed and unknown. Among the different symptoms of uterine fibroids is unexplained weight gain. When uterine fibroids grow to the point where it causes a woman to gain weight, the fibroids are often treated. There are many uterine fibroids treatment options available today. Serious cases of uterine fibroids may be treated with non-invasive procedures using laser or MR guided Focused Ultrasound Surgery (MRgFUS). In extreme cases, and most often in women approaching menopause, a hysterectomy can be performed. To maintain your weight take healthy foods which are free of fat and avoid sweets, artificial sweetners and fast foods, and try to excercise for half an hour for atleast 5 days a week. As you mentioned that you re 41 years you still have time for menopause it would be advisable to keep the ovaries, however, since the fibroid is still small, I suggest you to kindly visit a good homoepathic doctor who can treat the fibroids and also see that they wont recur. Wishing you good health!