Health Information Library

This health concern can make it challenging to start a pregnancy. Learn about possible causes and treatment.

Learn about the symptoms, treatments and home care tips for this short-lived type of seborrheic dermatitis that's common in infants.

This open tunnel connects the rectum and vagina, allowing gas or stool to pass into the vagina. Learn about rectovaginal fistula treatment and self-care.

A firm, round lump in breast tissue could be a fluid-filled cyst. Breast cysts are typically not cancerous and often need no treatment.

A breast lump could be due to something harmless. Or it could be cancer. Learn breast lump causes and find out when you need to see a health care provider.

Do you need cataract surgery? Find out what to expect during and after this common eye procedure.

Find out about this prenatal test that checks the fluid surrounding the baby during pregnancy.

Find out the basics about cancer, including symptoms, causes and treatments. Learn steps you can take to prevent cancer.

Learn about the many ways to prevent mosquito bites and how to ease the itch if you are bitten.

Learn more about this surgery that uses small incisions in the chest as an option to open-heart surgery.

This digestive condition happens when part of the small intestine is missing or damaged, either at birth or after surgery. The syndrome keeps you from absorbing needed nutrients.

Learn how Mayo Clinic specialists help you maintain your feeding tube at home.

Learn what may cause this change in mental abilities. Symptoms develop fast and include confusion and being unaware of surroundings.

This complication of radiation therapy for cancer can cause stomach pain, vomiting or diarrhea. For most people, symptoms go away within weeks.

Suicide can be prevented. Learn suicide warning signs and how to reach out for immediate help and professional treatment.

Breast cancer that begins in the milk-producing glands of the breast is uncommon. Learn what sets lobular carcinoma apart from other breast cancer types.

Baby acne — Comprehensive overview covers causes, symptoms, treatment of this newborn complexion problem.

Prenatal vitamins are an important part of pregnancy nutrition. Here's why.

Learn how computer-assisted brain surgery uses advanced imaging to create a 3D model of your brain to help guide neurosurgery.

Learn why surgery to remove the uterus, known as a hysterectomy, might be done and what to expect if you need this surgery.