Your normal white/clear discharge will turn yellow or dry yellow when exposed to air. If it is coming out yellow, then you probably have a bacterial infection and need to see a doctor. Different Types of Discharge: White: Thick, white discharge is common at the beginning and end of your cycle.
After a person ingests food, it takes about six to eight hours to traverse the stomach and small intestine. Transit time through the large intestine, or colon, takes significantly longer, averaging about 40 hours. In men, the food remains in the colon about 33 hours, while in women it remains about 47 hours. When two British doctors researched digestion time in children, they found it was significantly more rapid than in adults, averaging just 33 hours from eating to elimination.
After you eat, it takes about  six to eight hours for food to pass through your stomach and small intestine. Food then enters your large intestine (colon) for further digestion, absorption of water and, finally, elimination of undigested food. In the 1980s, Mayo Clinic researchers measured digestion time in 21 healthy people. Total transit time, from eating to elimination in stool, averaged 53 hours (although that figure is a little overstated, because the markers used by the researchers passed more slowly through the stomach than actual food).