Only 50-70% of pilonidal cysts contain hair at surgery. It is more common in adolescent and young males. Other risk factors include hirsute people, hair in the gluteal cleft, sitting occupations, obesity, and caucasian race.
How many stages of the life cycle does a butterfly have? Butterflies have 4 stages of life: egg, caterpillar, pupa and butterfly. The butterfly starts out its life in an egg, and once it is laid, it eats it for its first meal. Once â¦a caterpillar, it transforms itself into a cocoon, also known as the pupa stage. It stays inside the cocoon for about 85 days.
Life Cycle of Butterflies and Moths. As advanced insects, butterflies and moths have a complete life cycle. This means that there are four separate stages, each of which looks completely different and serves a different purpose in the life of the insect. This is the life cycle of the Monarch (Danaus plexippus). The egg is a tiny, round, oval, or cylindrical object, usually with fine ribs and other microscopic structures. The female attaches the egg to leaves, stems, or other objects, usually on or near the intended caterpillar food.