Averages for San Francisco in January. January San Francisco. Weather Lowdown. January is one of the coldest months in San Francisco, USA and it is also one of the wettest. This month is the rainy season and heavy downpours can occur at any time with a monthâs worth of rain sometimes falling over a couple of days.
When the bile ducts become blocked, bile builds up in the liver, and jaundice (yellow color of the skin) develops due to the increasing levels of bilirubin in the blood. The possible causes of a blocked bile duct include: Cysts of the common bile duct. Enlarged lymp nodes in the porta hepatis. Gallstones.
In such cases, symptoms can develop. 1  In most cases of obstruction, the stones block the cystic duct, which leads from the gallbladder to the common bile duct. 2  This can cause pain (biliary colic), infection and inflammation (acute cholecystitis), or both.