Used to have v thick hair but now they are getting v thin. im getting worried im gonna be bald soon caz my dad is but no one else in the family. help?

Sorry: Sorry - exact same thing happened to me. It's distressing & unfair - i know. To slow it down (can't stop it), make sure you are healthy in terms of diet and exercise, reduce stress as much as you can, use gentle shampoos, cover your head in the sun, &, if it continues, see a dermatologist about medications. Rogaine (minoxidil) is not a guarantee - the success rate is not what's published but it may help.