What factors easily lead to gallstone disease

Gallstone disease incidence higher in China, The following cases Uiterwaal easy:
1. Women: gallstone disease in women than men about more than doubled, but the number of pregnant women more higher incidence rate, which may be related to female hormones to cholesterol metabolism changed, the cholecystokinin of decline, causing the bile stasis.
2. Age: According to statistics, 40 to 50 people over the age of the high incidence rate, which could increase the age, activity decreased gradually physical degeneration, chronic cholecystitis, and other reasons.
3. Obesity: Obesity people not normal fat metabolism, cholesterol often saturation point, this is one of the factors that form stones. Some statistics, obesity the incidence of gallstone disease than those of normal weight than 6 times.
4. Diet: cholelithiasis and closely related to eating habits, Hi eat sweets, greasy diet high incidence of persons, but also with an increase of fat and sugar metabolism related to the load.
5. Health conditions: dirty prone intestinal diet of ascariasis, and biliary ascariasis entrance after biliary tract infection and can cause obstruction to promote gallstone formation, which is in intrahepatic and extrahepatic bile duct calculi the main reason.