1. The growth rate and thickness of body hair are mainly influenced by factors such as genetics, hormone levels, age, and nutritional status.
2. Scraping off body hair itself does not change its basic growth characteristics, such as thickness, color, or growth rate. Scraping only removes the exposed part of body hair from the skin surface, without directly affecting the growth process inside the hair follicles.
3. Body hair does not become thicker as it is scraped. It seems that the body hair has become thicker, which may be due to the thicker and harder tips of the newly grown hair or psychological effects.