Sexually transmitted diseases (STDs), also known as sexually transmitted infections (STIs), are infections that are spread through sexual activity, including vaginal, anal, and oral sex.

Hyperthyroidism and hypothyroidism are both conditions related to the thyroid gland, a butterfly-shaped gland located in the front of the neck, just below the Adam's apple.

Anal fissures are small tears or cuts in the lining of the anus, which can cause pain, bleeding, and discomfort during bowel movements.

Diarrhea is a common gastrointestinal issue characterized by loose, watery stools. It can occur for various reasons and may last for a short duration or persist for weeks.

COPD stands for Chronic Obstructive Pulmonary Disease. It's a chronic inflammatory lung disease that causes obstructed airflow from the lungs.

Multiple sclerosis (MS) is a chronic neurological condition that affects the central nervous system (CNS), which includes the brain and spinal cord.