Actinic keratosis (AK) causes rough, scaly skin patches. Without treatment, AK can lead to a skin cancer called squamous cell carcinoma.| Cleveland Clinic
Cleveland Clinic advertising supports our core mission and helps us improve our site as a resource for trusted health content. Learn how to advertise with Cleveland Clinic.| Cleveland Clinic
Fetal development is how a fetus grows during pregnancy. It begins at conception and ends at birth. Many changes occur to the fetus and the pregnant person in this time.| Cleveland Clinic