Euthanasia Legal?

Does anyonoe know if euthanasia is legal? Euthanasia is when someone comits suicide painlessly, including drugs or diseases etc.

There had been many suicidal activities in Japan. What would they do if someone is on euthanasia?

Please answer this question completely. If someone answers this I would be happy to see the answer.

Euthanasia is illegal in Japan. Simple as that. There have been many lawsuits.

Japan
The Japanese government has no official laws on the status of euthanasia and the Supreme Court of Japan has never ruled on the matter. Rather, to date, Japan's euthanasia policy has been decided by two local court cases, one in Nagoya in 1962, and another after an incident at Tokai University in 1995. The first case involved "passive euthanasia" (消極的安楽死, shōkyokuteki anrakushi?) (i.e., allowing a patient to die by turning off life support) and the latter case involved "active euthanasia" (積極的安楽死, sekkyokuteki anrakushi?) (e.g., through injection). The judgments in these cases set forth a legal framework and a set of conditions within which both passive and active euthanasia could be legal. Nevertheless, in both of these particular cases the doctors were found guilty of violating these conditions when taking the lives of their patients. Further, because the findings of these courts have yet to be upheld at the federal level, these precedents are not necessarily binding. Nevertheless, at present, there is a tentative legal framework for implementing euthanasia in Japan.[22]

In the case of passive euthanasia, three conditions must be met:

the patient must be suffering from an incurable disease, and in the final stages of the disease from which he/she/ is unlikely to make a recovery;
the patient must give express consent to stopping treatment, and this consent must be obtained and preserved prior to death. If the patient is not able to give clear consent, their consent may be determined from a pre-written document such as a living will or the testimony of the family;
the patient may be passively euthanized by stopping medical treatment, chemotherapy, dialysis, artificial respiration, blood transfusion, IV drip, etc.
For active euthanasia, four conditions must be met:

the patient must be suffering from unbearable physical pain;
death must be inevitable and drawing near;
the patient must give consent. (Unlike passive euthanasia, living wills and family consent will not suffice.)
the physician must have (ineffectively) exhausted all other measures of pain relief.

You can check it out at Wiki.