What are the three stages of hair growth?

What are the three stages of hair growth?

• A. Anagen, catagen, and telogen
• B. Prophase, metaphase, anaphase
• C. Primary, secondary, tertiary
• D. Growth, rest, dormancy

Answer: (A)

Hair growth happens in a cycle of three phases. The growing phase, called anagen, is when the follicle actively produces hair and length can increase for years on the scalp. The next phase, catagen, is a brief transition period where growth slows and the follicle shrinks. The final phase, telogen, is the resting phase during which hair is shed and a new growth cycle begins. This sequence—anagen, catagen, telogen—captures the distinct stages of how hair grows and renews. The other options refer to cell division or unrelated classifications, not the specific three-stage cycle of hair growth, so they don’t fit.

Hair growth happens in a cycle of three phases. The growing phase, called anagen, is when the follicle actively produces hair and length can increase for years on the scalp. The next phase, catagen, is a brief transition period where growth slows and the follicle shrinks. The final phase, telogen, is the resting phase during which hair is shed and a new growth cycle begins. This sequence—anagen, catagen, telogen—captures the distinct stages of how hair grows and renews. The other options refer to cell division or unrelated classifications, not the specific three-stage cycle of hair growth, so they don’t fit.