DEAR LACNET MEMBERS This was posted on Pedtalk list serve Any comments send to me and I will post them back to pedtalk I'm not sure exactly about breast milk, but the problem with nitrogen in the blood in scuba is actually one of partial pressures of gasses so that the N goes into solution when the person is under hight pressure at great depths (>30-40 ft). When the person rises back to the surface quickly, the N comes out of solution and back to the gas phase. It's the bubbles that are a problem. If stops are made during the ascent, the gas is slowly brought back out of soolution at a rate that the body can blow off in the lungs and no or an insignificant amount of bubbles form in the blood. I doubt that N would stay any more in solution in breast milk than in the blood when the person returns to the surface using the appropriate pressure equalization stops as they ascend. At 05:39 PM 6/10/98 -0400, you wrote: >A new mother who is breastfeeding asked if she would harm her child by >scuba diving. She was concerned that dissolve nitrogen might be passed >into breastmilk. I can find nothing on this. Any ideas?