If the lower abdomen is hard during non-menstrual period, it may be due to fibroids, adenomyosis or huge ovarian cysts, which can be clarified by gynecological ultrasound and gynecological examination at the hospital. If the lower abdomen is hard during menstruation, it may be due to lower hormone levels during menstruation, reduced appetite and gastrointestinal indigestion, so pay attention to proper rest and give warm, easily digestible food can be properly relieved, if it is not relieved, further examination is needed and symptomatic treatment should be given to avoid delaying the diagnosis and treatment of the disease.