Hot stone massage is a variation on classic massage therapy. Heated smooth, flat stones are placed on key points on the body. The massage therapist may also hold the stones and use them to massage certain areas of the body.

 The stones are usually basalt, a type of rock that is rich in iron, so they retain heat. River rocks are normally used because they are smooth - they are worn down naturally over time by the river current.

The stones are immersed in water and heated until they are within a specific temperature range. The placement of the stones is usually on certain points on the back, in the palms of the hand, or between the toes, but may vary depending on the client's condition. 

The heat of the stones soothes and relax the muscles, which allows the therapist to apply deeper pressure, if desired. The warmth of the hot stones improves circulation and calms the nervous system.

Some Massage Therapists place stones on points that are thought to be energy centres of the body to re-balance the body and mind.