hi hun, ive had an abnormal result from a smear test years ago, i was supposed to go for a colposcopy i think its called but found out i was expecting so couldnt, anyway all of my smear results since have been normal, so no iy doesnt always mean cancer, i think it means these abnormal cells have the potential to turn cancerous, im not sure what high grade means, maybe you should go and see your gp and get them to explain your results to you ? just ti put your mind at rest and its good yoive had your smear and they are aware of the abnormal cells and can now keep a close eye for any changes x