I Have OCD And Didn’t Wash My Hair For a Long Time

I am a 20yr old male who didnt consistantly wash my hair from the age of 14-18 because of suffering OCD. Its hard to estimate but its possible I went a month without washing my hair in that 4 yr period. Although I did take a shower everyday and even sometimes twice, so my hair did get wet daily.

I was wondering if its true sebum buildup causes hairloss? IF so is this hairloss permenent or should we assume once the problem is corrected, any loss would grow back.

I also have oily scalp which makes me assume, I might have had sebum buildup.

Is the sebum builup story about causing hairlos true or false?? Please respond as your response will really relieve my worries and anxiety, since I do suffer a few mental problems and have been worrying about this for some time. Also if the sebum buildup applys to my case, would a dermatologist be able detect that by observing my scalp??

Thanks

Sebum buildup does not cause hair loss. What may happen is that if you brush or comb you hair and the hair is stuck to your scalp, you may pull it out. Wash with a good shampoo and use a conditioner as well to prevent pulling the hair out.