"less severe consequences" is grammatically correct and usable in written English.
You could use it when referring to the effects of a situation or action that are not as serious or intense as they could have been. For example: "The government decided to ease restrictions on the public, implying less severe consequences if those restrictions were violated."
Consequently, these patients believed that bleeding events result in less severe consequences compared to blood clots: "They measured my blood every day or every other day… if it was the least bit up or down, they said take an extra pill, or don't take any for two days and then we'll do it again.
Short-term displacement has less severe consequences, but the return to home can also have its own challenges.
A downgrade on debt issued by the United States would have less severe consequences than a default, which takes places when a government fails to pay its creditors.
While considering colliding with a car as the reference case, accidents with vulnerable road users (i.e., pedestrians, cyclists, moped riders, motorcyclists) have less severe consequences with the probability of on-board injury occurrence reducing by a factor between 2 and 3.
On the other hand, limiting their access to a TO has less severe consequences than in sub-Saharan Africa because they have easier access to modern and reliable alternatives (including vasectomies for their partners) and safe abortions.
Overall hyperlipidemia was perceived as a less severe condition with less severe consequences.
It is impossible for schools to create a safe environment for all students when rape results in a less severe consequence than cheating.
Bulimia, two to six times as common as anorexia, has less severe health consequences, but takes over patients' lives and destroys their psychological well-being.
Furthermore, more experienced workers may be better protected against dismissals and face less severe career consequences when taking vacation.
It may be that being untreated comes with less severe health consequences during the latter period.
Thus, by maintaining the gastrointestinal continuity, LSG causes only moderate microbiota alterations with less severe negative consequences.
