Preventive treatment to avoid disease.

Surgical removal of breasts preventively.

Surgical removal of healthy ovaries.

Prophylactic surgery (also known as preventive surgery or risk-reducing surgery), is a form of surgery whose purpose is to minimize or prevent the risk of developing cancer in an organ or gland that is yet to develop cancer and is known to be at high risk of developing cancer.

(law) A judge-made rule that overprotects a constitutional right in order to safeguard that right or facilitate detection of violations of it.

Medication used to prevent disease.

Preventive immunization against infectious diseases.

Paste used to prevent disease.

Device used to prevent disease.