There are certain illnesses, conditions, and circumstances that might require completely avoiding singing bowls or participating in sound therapy where singing bowls are used. If you find that you have one or more of these conditions but are still interested in the healing effects of singing bowls, you should consult your doctor before use.

Certain neurological disorders will foreclose the use of singing bowls. For example, if you have epilepsy, you should not attend a sound therapy session where singing bowls are used. If you wish to do so, it is necessary to get your doctor’s permission as well as be prescribed the correct anti-epileptic medication. If you have Parkinson’s disease and have a deep brain stimulation device (DBS) to treat your illness, you should not use singing bowls. If you have a neurological disease other than these, please contact your physician to be sure that you can receive sound therapy with singing bowls.

In addition, singing bowls should not be placed on your body if you have a heart pacemaker, coronary stent, cardiac shunt, artificial heart valves, implantable cardioverter defibrillator (ICD), metal inserts, metal implants, or metal staples. Placing a vibrating singing bowl on your body if you have any of these inside of you is very dangerous. As the singing bowl is played and the vibrations pass through your body, there is a chance that the vibrations could shake and disturb the metal inside of you, causing it to move or malfunction, which could result in pain or death.

https://www.shantibowl.com/blogs/blog/dangers-of-singing-bowls