Rheum is a noun that refers to a watery or thick fluid that may accumulate in the eyes or nasal passages.
In medical terminology, rheum typically refers to the thin mucus secreted by the mucous membranes of the eyes, nose, and mouth. It is composed of a combination of water, proteins, salts, and cellular debris. Rheum can be of various consistencies, ranging from a clear, watery discharge to a thicker, gel-like substance.
In the context of the eyes, rheum is often associated with sleep or "sleepy dust" that collects in the corners of the eyes during sleep. This substance is commonly referred to as eye boogers or sleep in the eyes. It is produced by the glands located near the eyelids and serves to lubricate and protect the eye surface.
Furthermore, rheum can also be found in the nasal passages, where it aids in moistening and protecting the respiratory system. It helps to trap dust, allergens, and other particles that enter through the nose, preventing them from reaching the lungs.
While rheum is a natural bodily secretion, excessive or abnormal production of it may indicate underlying health conditions such as allergies, infections, or inflammatory disorders. In such cases, medical attention may be required to diagnose and address the underlying cause.
Overall, rheum is a bodily fluid that plays a vital role in maintaining the health and proper functioning of the eyes and nasal passages by providing lubrication and protection against foreign particles.
