Hi welcome to health care magic... You are having uterine fibroid according to history... You have not mentioned your age... Fibroid is called as leiomyoma....It is benign tumour of smooth muscle... If you are asymptomatic than no specific treatment needed. . Close clinical regular follow up needed... If bleeding per vagina, frequency of urination like problem present than its removal needed During pregnancy and estrogen therapy it can increase in size. Take care Consult gynecologist for examination