Human cloning for scientific research raises several ethical issues. It presents medical issues because cloning technology is still developing and most cloning attempts fail, potentially harming cloned individuals. It raises social issues because cloning could undermine human dignity and create a new form of slavery. It also conflicts with certain religious values that see cloning as playing God or interfering with natural human development. While cloning may have research applications, it is generally considered unethical due to these medical, social, and religious concerns.