What causes congenital hip dysplasia?

Choice A reason:

Swimming is one of the best exercises for pregnant women because it provides moderate aerobic conditioning with minimal stress on your joints. It also supports your increased weight and helps you stay cool and comfortable.

Choice B reason:

Scuba diving is not a safe exercise for pregnant women because it poses a high risk of injury to the baby. The baby has no protection against decompression sickness and gas embolism, which are caused by changes in pressure underwater.

Choice C reason:

Walking is a great exercise for beginners and can be done throughout pregnancy. It improves your cardiovascular fitness, strengthens your muscles and bones, and helps prevent excessive weight gain and gestational diabetes.

Choice D reason:

Yoga can be beneficial for pregnant women as it can improve flexibility, balance, posture, breathing and relaxation. It can also reduce stress, anxiety and back pain. However, some yoga poses may not be suitable for pregnancy, so it is advisable to join a prenatal yoga class or consult a qualified instructor.

Choice E reason:

Snow skiing is not recommended for pregnant women because it involves a high risk of falling and affecting your balance. Falls can cause damage to your baby or placenta, especially in the second and third trimesters.

Choice A reason:

Nevus flammeus is a port-wine stain, a type of birthmark that is present at birth and does not fade over time. It is caused by a malformation of capillaries in the skin and appears as a reddish-purple patch. It can occur anywhere on the body but is not associated with swelling or suture lines.

Choice B reason:

Cephalhematoma is a collection of blood under the periosteum of the skull bone, usually caused by trauma during delivery. It appears as a swollen area on the head that does not cross the suture line because it is limited by the boundaries of the bone. It usually resolves within a few weeks or months without treatment.

Choice C reason:

Molding is the temporary change in the shape of the newborn's head due to the pressure of the birth canal during delivery. It results in an elongated or cone-shaped head that may cross the suture line. It usually resolves within a few days as the skull bones return to their normal position.

Choice D reason:

Caput succedaneum is a localized swelling of the scalp, usually caused by pressure from the cervix or vacuum extraction during delivery. It appears as a soft, puffy area on the head that crosses the suture line because it is not limited by the bone. It usually resolves within a few days without treatment.