The phrase "cause severe harm" is grammatically correct and can be used in written English.
It can be used to describe the action of something or someone causing significant damage, injury, or negative consequences to someone or something else. Example: "The reckless driver caused severe harm to several innocent bystanders when they crashed into a crowded sidewalk." In this sentence, "cause severe harm" is used to describe the impact of the reckless driver's actions on others.
Many surgeons had long feared that waiting would cause severe harm, but those fears were proved unfounded.
The World Health Organisation has already said that such therapies can cause severe harm to an individual's mental and physical health.
Assange is expected to argue that conditions inside the embassy are in certain ways worse than those of a conventional prison, with the potential to cause "severe harm" both physically and mentally.
Extreme value events are highly unusual events that can cause severe harm to people and costly damage to the environment.
In addition new devices will help to diminish the occurrence of critical situations which could cause severe harm to the patient.
Proportions were key - too much or too little of any of the ingredients and not only might the solution not work, but it could also cause severe harm.
Gender identity and sexual orientation are not choices; and those who unethically try to modify transgender and gay/lesbian/bisexual+ youth through therapy, brainwashing or religious bias can cause severe harms.
Chief constable George Hamilton said the operation had prevented dissident republicans opposed to the peace process from causing severe harm.
The agency's administrator, Stephen L. Johnson, said the mandate was "strengthening our nation's energy security and supporting American farming communities," and that the mandate was not causing "severe harm to the economy or the environment".
The tribunal also condemned China's land reclamation projects and its construction of artificial islands at seven features in the Spratly Islands, concluding that it had caused "severe harm to the coral reef environment and violated its obligation to preserve and protect fragile ecosystems and the habitat of depleted, threatened, or endangered species".
