everyday beliefs and customs
Why do Hindus not wash hair on certain days like Thursday or Saturday?
The planetary connection
In Hindu tradition, each day of the week is linked to a planet and its ruling deity. Thursday is ruled by Guru, the planet Jupiter, and Saturday by Shani, Saturn. In folk belief, washing your hair on these days is thought to offend the deity or planet. So many families avoid it as a mark of respect. Some regions also avoid washing hair on Friday. The idea comes from Jyotisha, the traditional system of reading the planets and their influence on life.
Where it comes from
This practice is rooted in old beliefs about the planets and their powers. Over time it became woven into daily life as a simple custom passed down in families. There is no evidence that washing hair on any particular day has any real effect. The practice is a folk belief, not a medical or scientific rule.
In everyday life today
The custom varies widely. Some families keep it strictly, while others follow it loosely or not at all. In cities and among younger people, it is often less common. Many Hindus abroad keep the habit out of routine or to stay close to home tradition, while others ignore it. Whether someone follows it depends on their family, region, and how much they value the custom. It is one of many small practices that people choose to keep or let go.