Although demographic data on BBS prevalence in Pakistan is not yet available, genetic studies have so far reported eight BBS genes including ARL6 (MIM# 608845), BBS1, BBS2, BBS5 (MIM# 608845), BBS9 (MIM# 607968), BBS10, BBS12, and TTC8 (MIM# 608132) in Pakistani families (Maria et al., 2016). Here, BBS2 is linked to Bardet-Biedl syndrome.