Hakabakashii Kasei no Jutsu - Rapid Growth TechniqueEdit
This technique is utilized by medical-nin to do exactly the opposite of healing. When there is a toxin or a disease in the body that they know of, they can focus chakra into an enemy's body to cause the symptoms to rapidly develop. If it was a poison, the effects would be far more severe and would kick in quicker, whilst with a disease, it would worsen in a matter of minutes, depending on the disease or the poison. The more chakra involved, the quicker this happens.