Why does he gets so many abscess?

Chichi
Hi guys! So I'm hopping someone can help me.
My boyfriend is in his mid 20s and he always gets this huge and painful abscesses. 
The docs say that is due to ingrown hair and he is very hairy but he is a very clean person and always keeps his hai trimmed down.  But I'm concerned because he is getting them more often now. Please help:(