Skip to main content

Types of Female Pelvis, Shapes of Female Pelvis and Child Birth

Female Pelvis is of four types. Actually, these types are based on the shape of the female pelvis. The shape of female pelvis is very important from a gynecological point of view. The anatomical shape of the female pelvis should be suitable for the passage of the baby through it. Otherwise, the baby may get stuck inside the pelvis that may make vaginal delivery difficult.
Let us discuss different types or shapes of the female pelvis on by one and in brief detail.

Types of Female Pelvis (Caldwell-Moloy classification)

Shapes of female pelvis
(from left to right)

1 .Gynaecoid Pelvis.

This is the most suitable female pelvic shape. This allows normal childbirth with ease. It has round pelvic inlet and shallow pelvic cavity with short ischial spines. All these features allow the rapid birth of the baby. So Gynaecoid Pelvis is the most suitable pelvic shape for childbirth.

2. Anthropoid Pelvis.

Anthropoid pelvis has oval shaped inlet with large anterior-posterior diameter and comparatively smaller transverse diameter. It has a larger outlet. The problem in this pelvis is the inlet. The diameters of inlet favor the engagement of the fetal head in an occiput-posterior position that may slow down the progress of labor. If the head engages in an anterior position then Labor progress normally in most of the cases.

3. Android Pelvis.

Android shaped pelvis has triangular or heart-shaped inlet and is narrower from the front. It has prominent ischial spines and also has narrower transverse outlet diameter. Such pelvis is more likely to be present in taller women. African-Caribbean women are more at risk of having an android shaped pelvis. Childbirth is difficult and more complicated in android shaped pelvis than gynaecoid pelvis. Women have to push harder, walk more often and chances of instrumental vaginal delivery are high. It may prolong the Labor.

4. Platypelloid Pelvis.

Platypelloid pelvis has a narrow anterior-posterior diameter of the pelvic inlet. The pelvic inlet is specifically kidney-shaped. The pelvic cavity is usually shallow and diameters of the outlet are favorable for the process of Labor. But platypelloid pelvis doesn’t allow the head to engage with ease. But if the head manages to engage, then rest of the process of Labor may occur normally but in most of the cases, it is longer as compared to the progress of Labor in case of the gynaecoid pelvis.

 

Also, compare fetal head diameters with pelvic diameter by reading the following article.

Comments

  1. Scientific racism right here. Please show me where you are getting this information.

    ReplyDelete
  2. I didn't understand your comment. Can you elaborate a little more?

    ReplyDelete
  3. Dr. Ramzan, is there a way I can get permission to use the photo from your article in a presentation about back labor at a conference I am speaking at, please?

    ReplyDelete
    Replies
    1. Dear. Catie, If you are using it for non-profit educational purpose only and not for commercial purpose then it is safe to use. This is an old article, i don't remember from i got this image.

      Delete

Post a Comment

Post Your Reply and Give Your Opinion About the Post

Popular posts from this blog

Human Parasites, Types of Parasites, and Classification

Parasite: A parasite is a living organism which gets nutrition and protection from another organism where it lives. Parasites enter into the human body through mouth, skin and genitalia. In this article, we will generally discuss the types and classification of parasites. It is important from an academic point of view. Those parasites are harmful, which derives their nutrition and other benefits from the host and host get nothing in return but suffers from some injury. Types of Parasites Ecto-parasite: An ectoparasite lives outside on the surface of the body of the host. Endo-parasite: An endo-parasite lives inside the body of the host, it lives in the blood, tissues, body cavities, digestive tract or other organs. Temporary parasite: A temporary parasite visits its host for a short period of time. Permanent parasite: Permanent parasite lives its whole life in the host. Facultative parasite: A facultative parasite can live both independently and dependently. It lives in the

How to taper off, wean off beta blocker, atenolol, Propranolol, Metoprolol

Beta blockers include, atenolol (Tenormin), propranolol (Inderal ) and metoprolol (Lopressor) and are used to treat high blood pressure, certain cardiac problems, migraine and few other conditions. People usually take atenolol, propranolol or metoprolol for many years as a treatment of high blood pressure or after having an episode of heart attack . Sometimes, it becomes necessary to withdraw these beta blockers due to their potential side effects that trouble the patients or sometimes doctor wants to change the drug and shift the patient to some other anti-hypertensive medicine. No matter whatever the cause is, whenever, a patient who has been using a beta blocker for a long period of time, and he needs to be stopped from further usage of that beta blocker, must not stop taking it. One should taper off the dose of a beta blocker. Now a question arises how to wean off or taper off a beta blocker? The method of tapering off beta blocker varies from individual to individual. Allow you

Difficulty in standing up from a sitting or squatting position, Causes & Solution

People who feel it difficult to stand up from a sitting or squatting position may have problem in one or more of the following structures. 1. Knee joint 2. Muscles of legs, thighs or buttock 3. Muscles of arms 4. Cerebellum Let’s now explain one by one, what kind of problems in above structures may cause difficulty in standing up from a sitting or squatting position. 1. How do problems in knee joints lead to difficulty in standing up? Knee joint is one of the primary and most affected joint that takes part in standing up. Other joints that take part are hip, ankle, knee, elbow, wrist and shoulder joint. Knee joint gets the most strain , and also knee joint is comparatively less supported. That’s why usually it’s the knee joint that starts to cry first because of arthritis. Knee joint arthritis causes long term knee pain , that makes the movement difficult at knee joint. Arthritis also makes the knee joint stiffer and slower and its range of motion also decreases. All these affects coll