Introduction. An ingrown toenail develops when the sides of the toenail grow into the surrounding skin. The big toe is often affected, either on one or both sides. The nail curls and pierces the skin, which becomes red, swollen and tender.Other possible symptoms include: 1  pain if pressure is placed on the toe.ntroduction. An ingrown toenail develops when the sides of the toenail grow into the surrounding skin. The big toe is often affected, either on one or both sides. The nail curls and pierces the skin, which becomes red, swollen and tender. Other possible symptoms include: 1  pain if pressure is placed on the toe.
anon256938 wrote in Post 15: A metric ton is equal to 2240 US pounds, which can also equate to a long ton, sometimes spelled as long tonne. Both long tonne and/or long ton are uncommonly referred to as a megagram ton.
In the United States and formerly Canada a ton is defined to be 2,000 pounds (907 kg). Where confusion is possible, the 2240 lb ton is called  long ton  and the 2000 lb ton  short ton ; the tonne is distinguished by its spelling, but usually pronounced the same as ton, hence the US term metric ton.