What Is the MTHFR Gene Mutation? The MTHFR gene mutation is a variation in the MTHFR gene. This gene normally tells your body how to make the MTHFR protein. You need this protein to process folate, ...

What Is Medullary Carcinoma Thyroid (MTC)? Medullary carcinoma is a rare type of cancer that can appear in different parts of the body. It most commonly shows up in the thyroid gland and the colon.

Certain genetic mutations can boost your risk of breast cancer. Here’s what experts say you need to know when making the decision to get tested. Possible anomalies in a breast cancer screening are ...