He is receiving treatment for hepatitis C.

Hepatitis D is a viral disease that is transmitted through blood.

I recommend getting vaccinated against hepatitis A.

It was confirmed that he was infected with hepatitis B.

My father was diagnosed with ankylosing spondylitis.

He is observing stars using his new telescope.

Bile salts play an important role in the digestion of fats.

I am planning to go to Gangwon in Korea next week.

He has no knowledge about anal sex.

He started training his anal sphincter.