Multiple Endocrine Neoplasia type 1 (MEN 1) is a rare genetic disorder that affects the endocrine system, leading to the development of tumors in multiple glands. The most commonly involved glands are the pituitary gland, parathyroid glands, and pancreas. These tumors can be benign or malignant and may cause hormonal imbalances, resulting in various health issues. MEN 1 is caused by mutations in the MEN1 gene, which is responsible for producing a protein that helps regulate cell growth. Individuals with MEN 1 have a higher risk of developing these tumors, often at a younger age. Early diagnosis and management are crucial for improving outcomes and monitoring potential complications.