Sulfur waters are characterized by the presence of sulfur compounds, such as hydrogen sulfide, sulfates, or other sulfur minerals. These elements give the water a characteristic odor and may have therapeutic properties. Drinking or externally using these waters can stimulate blood circulation, relieve joint or muscle pain, improve the condition of the skin, and promote the healing of certain dermatological conditions. Sulfur waters are often used in thermal cures or balneotherapy for their presumed health benefits.