MEN1, or Multiple Endocrine Neoplasia type 1, is a rare genetic disorder that affects the endocrine system. It leads to the development of tumors in multiple glands, particularly the pituitary gland, parathyroid glands, and pancreas. These tumors can be benign or malignant and may cause various hormonal imbalances, leading to symptoms like excessive thirst, kidney stones, and digestive issues. People with MEN1 often experience a combination of these tumors, which can vary in severity. Early diagnosis and regular monitoring are crucial for managing the condition and preventing complications. Treatment may involve surgery, medication, or hormone replacement therapy to help control symptoms and maintain overall health.