When I talk of birth "memories" I am actually referring to the sensory "memories" of the body, not to the conscious memories of the brain at the time when the brain development makes it possible to store memories.

Of course, an infant can't form conscious memories because the brain at that point doesn't allow him to consciously comprehend the surroundings. When people have "birth memories" it has to do with their bodily reactions to something traumatic that happened at birth. For example, the umbilical cord could've wrapped around the infant's neck and he/she experienced a few moments of suffocation before it was unwrapped. The brain doesn't consciously understand what's happened but the body "understands" it as a threat to its survival and, naturally, reacts with the feeling of terror and compulsive bodily movements. This "memory" of terror, suffocation may remain in the body throughout the person's entire life, and, occasionally, from time to time, he or she may start suffocating for no reason and get terrified when it happens. They may also have nightmares about suffocation. If one day they talk to their mother and she tells them what happened during their birth, they'd be able to manage those attacks of terror better, and the attacks may subside or disappear all together. That's the value of "remembering" such things.

All in all, this is a rare occurrence in therapy. People could barely sort out huge piles of **** that's on their plate in the present let alone the birth experiences.