Unexplained right shoulder pain could be a sign of liver cancer due to referred pain from the liver, according to experts.

Add Yahoo as a preferred source to see more of our stories on Google. Doctors say that unintentional weight loss of more than 5% of body weight within six to 12 months is concerning. (Getty Images) ...

Researchers have shown that placental examination resulted in the accurate pathologic determination of more than 90% of previously unexplained pregnancy losses, a discovery that they say may inform ...

Yale researchers have shown that placental examination resulted in the accurate pathologic determination of more than 90% of previously unexplained pregnancy losses, a discovery that they say may ...

No one can say for certain what UFOs actually are, but a former director of the CIA said some of the recently unexplained phenomenon "might ... constitute a different form of life." Speaking on a ...

A new Netflix docuseries that breaks down eight seemingly inexplicable tales of ghost hauntings, alien encounters and mysterious disappearances shot up Netflix's most-watched show chart last week, ...

Weirder than weird. Stranger than strange. Fiction has nothing on reality when the latter looks like the stuff shared on the r/hmmm subreddit. Reality wins the bizarreness department, hands down. To ...

From strange abductions, to mutated species, to bizarre occurrences, there are some phenomena that science cannot - or will not - explain. This summer Science Channel unveils some of these shocking ...