Body Parts You Can Live Without!

Male nipples, belly buttons and tailbones: Learn which body parts you can live without – but why you still need to take care of them. And, find out what tonsils do and when they need to come out, plus the signs of an infected appendix or gallbladder.

Pediatrician Dr. Jim Sears hits the streets of Los Angeles to find out if people know what different body parts are for -- and whether you can live without them.

The Doctors explain why falling on your tailbone, or coccyx, can be so painful, and how to treat it. And, Dr. Lisa explains it's common for women to injure their tailbone during childbirth.

The spleen is an organ to the left of the stomach. It often is removed for various reasons, but there can be benefits to keeping yours.

Leigh, who is 33, says she doesn’t want to have children and is considering getting a hysterectomy because the women in her family have a history of uterine problems, including cancer. Dr. Lisa explains the risks and benefits of the surgery to remove a...

The department of nanotechnology and regenerative medicine at University College London often is called the human body parts store. The team uses stem cells and synthetic materials to grow replacement organs and body parts.

OB/GYN Dr. Lisa Masterson explains that nipples develop before the sex of a baby is determined, and why some people have "extra nipples." Male nipples still can cause pleasure and pain.

The gallbladder, which sits under your liver, can become painful when gallstones form, blocking the flow of bile from the liver to the small intestine. Learn how to recognize the symptoms and how to prevent the stones from forming.