Water retention

Water retention can refer to:

• Water retention (medicine), an abnormal accumulation of fluid in the circulatory system or within the tissues or cavities of the body

• Edema, an abnormal accumulation of fluid beneath the skin, or in one or more cavities of the body
• Premenstrual water retention, a common phenomenon associated with the menstrual cycle

• Water retention curve, relationship between soil water content and water pressure head
• Water retention on mathematical surfaces, topographic surfaces with basins