| Rank | Board name and description | Ratio | Posts | Members |
| 1 | GeoParent Community focussed on family life, parenting and pregnancy | 265 | 1206128 | 11085 |
| 2 | Ovusoft Parenthood and pregnancy message boards | 142 | 1462059 | 14908 |
| 3 | Nedug Free medical consultation forum (in russian) | 122 | 1851089 | 15124 |
| 4 | Baby and Bump Pregnancy forum | 73 | 13277564 | 181667 |
| 5 | PASS support boards Post abortion support forums | 59 | 581038 | 9889 |
| 6 | Acne.org Message Boards Acne problems discussion forum | 51 | 4884996 | 96366 |
| 7 | She Knows Pregnancy discussion and advice message boards | 47 | 2322944 | 49498 |
| 8 | Thinner Times forum WEight loss surgery forum | 43 | 697384 | 16196 |
| 9 | Pregnancy Forum Pregnancy and parenting forum | 37 | 2387713 | 63760 |
| 10 | Sober Recovery Alcoholism and Addictions help forums | 26 | 2422910 | 91907 |
| 11 | SaniHelp Health message board (in Italian) | 22 | 1071259 | 49064 |
| 12 | Hyster Sisters Women community for issues related to GYN diseases and complications | 18 | 2346519 | 128967 |
| 13 | Lap Band Talk Lap band surgery forums | 15 | 1515962 | 102408 |
| 14 | Depression Forums Mental health forums | 15 | 615797 | 41078 |
| 15 | Allnurses.com Nurses discussion forums | 10 | 2572754 | 256964 |
| 16 | ValueMD Medical schools forum | 10 | 1273669 | 132902 |
| 17 | Braintalk Communities Online patient support groups for neurology | 6 | 412843 | 70409 |
| 18 | ePharmacyWatch Forum about buying prescription drugs online and telemedicine | 6 | 801347 | 128822 |