A–Z Glossary

Anagen phase

The anagen phase is the active growth phase of hair follicles, which estrogen can prolong during pregnancy.

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Hair and nail changes in pregnancy

Hair and nail changes in pregnancy

Why pregnancy can change hair and nails Hair and nails are both keratinized tissues, so they respond to the shifting endocrine and metabolic environment of pregnancy. Rising estrogen tends to prolong the anagen, or active growth, phase of hair follicles. In practical terms, fewer hairs are pushed into the resting telogen phase at any one […]