[sci.med] male breastfeeding

jack@cs.hw.ac.uk (Jack Campin) (02/10/88)

[Craig Werner claimed that male breastfeeding was impossible because men
don't have ductal tissue].

When Alexander von Humboldt and Aime Bonpland were in Venezuela in 1799 they 
heard of a man who at the age of 32, while his wife was sick, had tried to 
pacify his child by getting it to suck on his own nipple. This caused his
breast to swell considerably and eventually discharge very thick, sweet milk.
The man (Francisco Lozano from the village of Arenas in the Araya peninsula)
breastfed his child two or three times a day for five months; the child had
no other food during this period. Humboldt and Bonpland saw Lozano and his son
about 14 years later; Lozano's breasts were enlarged and wrinkled, especially
the left one, which had been the more productive. They checked out a number
of eyewitnesses.

I got this from an anonymous abridgment of Humboldt's diaries published by
Blackwood's towards the end of last century. I haven't checked with the
original source, but the abridgment makes no other claims of extraordinary
occurrences. I doubt whether Humboldt was any more gullible than Craig Werner.
-- 
ARPA: jack%cs.glasgow.ac.uk@nss.cs.ucl.ac.uk
JANET:jack@uk.ac.glasgow.cs       USENET: ...mcvax!ukc!cs.glasgow.ac.uk!jack
Mail: Jack Campin, Computing Science Department, University of Glasgow,
      17 Lilybank Gardens, Glasgow G12 8QQ, Scotland (041 339 8855 x 6045)

hollombe@ttidca.TTI.COM (The Polymath) (02/19/88)

In article <1686@brahma.cs.hw.ac.uk> jack@cs.hw.ac.uk (Jack Campin) writes:
>[Craig Werner claimed that male breastfeeding was impossible because men
>don't have ductal tissue].

I seemed to have missed the referenced article.  However, I have to agree
that Craig is wrong on this one (someone note the date (-: ).  The La
Leche League (a breast-feeding advocacy organization) is quite positive on
the subject and routinely asks if the father would like to breast-feed in
cases where the mother can't or won't.  Though it usually requires hormone
injections to set the machinery in motion, there's no anatomical reason to
prevent most men from breast-feeding.

-- 
The Polymath (aka: Jerry Hollombe, hollombe@TTI.COM)   Illegitimati Nil
Citicorp(+)TTI                                           Carborundum
3100 Ocean Park Blvd.   (213) 452-9191, x2483
Santa Monica, CA  90405 {csun|philabs|psivax|trwrb}!ttidca!hollombe

flowers@lanai.cs.ucla.edu (Margot Flowers) (02/21/88)

[Craig Werner claimed that male breastfeeding was impossible because
men don't have ductal tissue].

I've heard of various cases of male lactation:

- It is not uncommon for newborn boys (or girls) to have some milk in
their breasts from the influence of maternal hormones.

- The Merck Manual describes Galactorrhea, "Lactation in MEN [emphasis
added], or in women who are not breast-feeding an infant" (p 1028ff,
15th ed), and describes many causes, some physiologic (such as nipple
stimulation, which stimulates the production of prolactin, in both men
and women), some pathologic (e.g. tumors), and some pharmacologic
(side-effect of drugs).  [:) Maybe they don't cover newborns and
Galactorrhea in the first 3 years of medical school? ;) ]

- In an anthro class years ago, I heard about a culture in Africa where
men routinely breastfeed their children.  The same info was repeated
in a breastfeeding class I went to.  The mechanics are the same as in
adoptive mothers who breastfeed.  Apparently, studies have shown that
in women, milk production is related NOT to breast size, but IS
partially related to amount of stimulation through breastfeeding, and
thus is somewhat self-regulating.  This may explain how milk
production could be initiated and exist in normal adult male breast tissue.  


---
By the way, the Merck Manual is a great source of info for people
interested in reading this group.  It is also a bargain:  The current
edition (15th) is just under 2700 pages (on bible paper) for $21.50.
You'll need a medical dictionary to read it initially but will catch
on fast.

werner@aecom.YU.EDU (Craig Werner) (02/23/88)

In article <9626@shemp.CS.UCLA.EDU>, flowers@lanai.cs.ucla.edu (Margot Flowers) writes:
> 
> I've heard of various cases of male lactation:
> 
> - The Merck Manual describes Galactorrhea, "Lactation in MEN [emphasis
> added], or in women who are not breast-feeding an infant" (p 1028ff,

	I don't even know why I continue to debate the point. I suppose
that as sci.med's resident dartboard,I feel dutybound.

	Galactorrhea, and it's correlary, Gynecomastia, when they occur
in men is usually significant of a disease state (either natural or
induced).  Men have rudimentary breasts for the same reason that women
have clitoral rather than vaginal orgasms (much to Freudians' dismay):
we all follow the same pattern initially in embryonic development, and
the penis (excepting the urethra) is merely a hypertrophied clitoris.
This is not to say, of course,that men and women end up the same.

Note well, however, that the stimulation of a male to lactation involves 
a significant amount of feminization, some of which is irreversible, 
and I really think that it is irresponsible to advocate male breast feeding.

-- 
	        Craig Werner   (future MD/PhD, 3.5 years down, 3.5 to go)
	     werner@aecom.YU.EDU -- Albert Einstein College of Medicine
              (1935-14E Eastchester Rd., Bronx NY 10461, 212-931-2517)
"Comedy, like Medicine, was never meant to be practiced by the general public."

dnichols@mips.csc.ti.com (Dan Nichols) (02/24/88)

In article <1948@ttidca.TTI.COM> hollombe@ttidcb.tti.com (The Polymath) writes:
>that Craig is wrong on this one (someone note the date (-: ).  The La
>Leche League (a breast-feeding advocacy organization) is quite positive on
>the subject and routinely asks if the father would like to breast-feed in
>cases where the mother can't or won't.  
>

This is the second time I have seen Jerry mention this. I sincerely wish 
someone could provide me with more information about this. 
My fiancee and I have both tried to find out more about this from the La
Leche League with NO luck whatsoever. They wouldn't even talk to me. The
local rep told my fiancee she'd never heard of such a thing (and sounded 
a bit repulsed by the idea). A letter to the national headquarters brought 
only a copy of an article which described male lactation as associated with 
sever cases of starvation or some such thing. They basically denied any 
knowledge of this being feasible.

Dan


Dan Nichols    {allegra,ihnp4,uiucdcs,sun}!convex!infoswx!ti-csl!dnichols
POB 655474 M/S 238     ARPA:  Dnichols@csc.ti.com
Texas Instruments Inc. CSNET: Dnichols@Ti-CSL
Dallas, Texas 75256    VOICE: (214) 995-6090

bzs@bu-cs.BU.EDU (Barry Shein) (02/24/88)

From Craig Warner...
>	I don't even know why I continue to debate the point. I suppose
>that as sci.med's resident dartboard,I feel dutybound.

Craig, stop being so damn defensive, you'll pollute the atmosphere.

What's wrong with a little controversial discussion? I don't see
anyone being impolite or throwing darts, just quoting various sources
or asking questions etc.

>Note well, however, that the stimulation of a male to lactation involves 
>a significant amount of feminization, some of which is irreversible, 
>and I really think that it is irresponsible to advocate male breast feeding.

That's probably true, I believe you. Describing it as a "disease"
condition might be a little ethnocentric (tho in this "ethno" it is
certainly advice that must be offered by any responsible physician.)

However, if La Leche and others are correct that there exist cultures
which do occasionally or regularly use men as nursemaids (apparently
without use of modern drug derivations such as estrogens) successfully
it's interesting by itself, medical anthropology and all that, what's
the big deal?

The impression I get is that the irreversible feminization is cosmetic
in effect and doesn't present any real life-threatening or otherwise
debilitating condition other than possible psychological effects which
I agree most men in this culture would find disturbing (as usual, I
more than welcome any correction), but somewhere here we might be
crossing a fine line referring to it as "a significant of a disease
state", no?

Well, ok, I'll certainly grant that if it occurs spontaneously and I
were an MD I'd consider it a "significant of a disease state", you did
say "usually", and would want to look into it, but that's not what was
being discussed, was it? We were discussing lactation in men
apparently induced by allowing an infant to suckle the breast.

But somehow the original question is being lost in this discussion, no
one asked if it were common to see men lactating in NYC, they said
that various sources have claimed this to be possible.

Calm down, the truth will out (usually.)

	-Barry Shein, Boston University

roy@phri.UUCP (Roy Smith) (02/24/88)

	Is there any truth to the rumor that lactation prevents conception,
i.e. as long as a man is nursing his child he will not become pregnant?
-- 
Roy Smith, {allegra,cmcl2,philabs}!phri!roy
System Administrator, Public Health Research Institute
455 First Avenue, New York, NY 10016

baxter@navajo (Ray Baxter) (02/25/88)

In article <1636@aecom.YU.EDU>, werner@aecom (Craig Werner) writes:
>and I really think that it is irresponsible to advocate male breast feeding.

I had not noticed that anyone on the net was advocating male breast feeding.
The question was, is it possible for men to breast feed?  The answer seems
to be yes.  Why continue the debate?



>	        Craig Werner   (future MD/PhD, 3.5 years down, 3.5 to go)
> ...
>"Comedy, like Medicine, was never meant to be practiced by the general public.


Given your investment, it is not surprising that you would like this quote.
I hope the rest of us can doubt both halves of the assertion.  Anyone who 
surrenders the control of the humor in their lives to someone else will 
lose their sense of humor; anyone who surrenders the control of their health
to someone else will lose their sense of health.

--
   Ray Baxter                             Department of Biological Sciences
   baxter@navajo.stanford.edu                           Stanford University
   (415) 723-3902                                Stanford, California 94305
--

dyer@arktouros.MIT.EDU (Steve Dyer) (02/25/88)

Pardon me if my credulity is strained a bit by claims that La Leche (sp?)
routinely asks whether a father would like to breastfeed, or that
by simple breast stimulation a male breast can develop and produce milk.
I'm not an anthropologist, but I see no evidence that this occurs in
any culture, or that it would ever be considered as other than something
extraordinary or a sign of endocrine dysfunction (i.e., it CAN'T and DOESN'T
occur routinely.)

I also am doubtful that suckling alone would have any measurable physiological
effect on the male breast viz. breast development and milk production.  This
is borne out by the observation that many men derive sexual pleasure through
breast and nipple stimulation and manipulation (this is more admitted to in
the gay male community, although it's certainly more widespread than that),
yet such practices have not produced an epidemic of gynecomastia or
galactorrhea.

---
Steve Dyer
dyer@arktouros.MIT.EDU
dyer@spdcc.COM aka {harvard,husc6,ima,ihnp4,bbn,m2c}!spdcc!dyer

dyer@arktouros.MIT.EDU (Steve Dyer) (02/25/88)

>The question was, is it possible for men to breast feed?  The answer seems
>to be yes.  Why continue the debate?

Huh?  On the contrary, I have seen nothing which would convince anyone
that "the answer seems to be yes."  A report from 1799 is rather meagre
and suspect evidence.  Outside of a hormonal imbalance, either endogenous or
due to exogenous administration of estrogens or estrogen-like substances,
I'm not convinced that breast feeding in men is physiologically possible.

---
Steve Dyer
dyer@arktouros.MIT.EDU
dyer@spdcc.COM aka {harvard,husc6,ima,ihnp4,bbn,m2c}!spdcc!dyer

baxter@navajo (Ray Baxter) (02/25/88)

I wrote:

>>The question was, is it possible for men to breast feed?  The answer seems
>>to be yes.  Why continue the debate?

to which <3203@bloom-beacon.MIT.EDU>, dyer@arktouros (Steve Dyer) writes:

>Huh?  On the contrary, I have seen nothing which would convince anyone
>that "the answer seems to be yes."  A report from 1799 is rather meagre
>and suspect evidence.  Outside of a hormonal imbalance, either endogenous or
>due to exogenous administration of estrogens or estrogen-like substances,
>I'm not convinced that breast feeding in men is physiologically possible.

Well, I did not really consider the 1799 evidence myself in my reply.
But the reports of diseases in which men do lactate seemed more concrete.
Clearly male breast feeding is possible.

I do not see why you want to exclude evidence relating to hormonal 
imbalance.  If there was not something out of kilter somewhere in the
man's physiology, he would not be lactating.  

I know there have been some discussions in this thread about the 
La Leche League and male breast feeding (denied by a later writer) 
which would imply that some people think that male breast feeding is 
a good idea, or even normal.  I had assumed that such discussions were
peripheral to the topic of:

     Is it possible for a man to breast feed?
			^^^^^^^^
That is, are there any circumstances which will allow a man to breast feed.
--
   Ray Baxter                             Department of Biological Sciences
   baxter@navajo.stanford.edu                           Stanford University
   (415) 723-3902                                Stanford, California 94305
--

dyer@spdcc.COM (Steve Dyer) (02/25/88)

In article <2055@navajo.UUCP>, baxter@navajo (Ray Baxter) writes:
> Well, I did not really consider the 1799 evidence myself in my reply.
> But the reports of diseases in which men do lactate seemed more concrete.
> Clearly male breast feeding is possible.

Well, galactorrhea in men is a syndrome familiar to anyone with some medical
knowledge, but that's a far far cry from saying that men have the capacity
for "breast feeding", a statement which takes a abnormal physiological event
and attempts to places it on the same nutritional and descriptive plane as the
normal physiological event in women, when in fact they are remarkably different.
In a syndrome like galactorrhea, the volume of milk produced is usually much
smaller than a normal lactating woman's and its production is much less
reliable; there's no evidence that men have the full physiological apparatus to
evoke the "milk letdown reflex" in response to an infant's suckling, and I
would be quite surprised if the fluid excreted (I hesitate to call it "milk")
was nutritionally adequate to sustain an infant.

Could you artificially try to induct a lactating state in a man given intense
exogenous hormonal manipulation?  Maybe, but I would still be sceptical of
the utility of what you'd end up with.  
-- 
Steve Dyer
dyer@harvard.harvard.edu
dyer@spdcc.COM aka {ihnp4,harvard,husc6,linus,ima,bbn,m2c}!spdcc!dyer

werner@aecom.YU.EDU (Craig Werner) (02/26/88)

In article <3203@bloom-beacon.MIT.EDU>, dyer@arktouros.MIT.EDU (Steve Dyer) writes:
> >The question was, is it possible for men to breast feed?  The answer seems
> >to be yes.  Why continue the debate?
> 
> Huh?  On the contrary, I have seen nothing which would convince anyone
> that "the answer seems to be yes."  

	While the question of "Why continue the debate?" has come into
our minds on this end, I also must remain extremely dubious.  In fact,
the only thing that could convince me would be a father nursing his
child on The Oprah Winfrey Show  (It could be Donahue, I'm not 
particularly.)  But until it's on daytime television, it's impossible,
and that's the final word.

-- 
	        Craig Werner   (future MD/PhD, 3.5 years down, 3.5 to go)
	     werner@aecom.YU.EDU -- Albert Einstein College of Medicine
              (1935-14E Eastchester Rd., Bronx NY 10461, 212-931-2517)
                  "...if that's the hand you use, well, nevermind..."

heather@blia.BLI.COM (Heather Mackinnon) (02/27/88)

In article <696@spdcc.COM>, dyer@spdcc.COM (Steve Dyer) writes:
> In a syndrome like galactorrhea, the volume of milk produced is usually much
> smaller than a normal lactating woman's and its production is much less
> reliable; there's no evidence that men have the full physiological apparatus to
> evoke the "milk letdown reflex" in response to an infant's suckling, and I
> would be quite surprised if the fluid excreted (I hesitate to call it "milk")
> was nutritionally adequate to sustain an infant.

I have no opinion as to whether men can lactate sufficiently to suckle an
infant (not enough solid information), but I do know something about 
lactation in women.

Milk production is determined by how much an infant suckles.  It takes
3-5 days following birth before a woman is producing enough milk for
her newborn.  During growth spurts, there is about 24 hours delay between
increased suckling by the infant and increased milk production by the mother.
Therefore, the volume of milk produced during galactorrhea in the absence
of nipple stimulation seems inconclusive to me.

The milk letdown reflex is in response to an infant's cry.  The letdown
reflex is dependent on the presence of the hormone oxytocin which is
produced in response to suckling.  While the letdown reflex makes nursing
easier for the baby, it doesn't necessarily happen everytime a baby cries
or even always prior to nursing.

Here are some things that I'd want to know before I could feel this question
was answerable:

1)  What's the chemical composition of the fluid produced by men with
    galactorrhea?  Is it similiar to colostrum (the fluid in a new mom's
    breasts), is it similar to milk or is it very different from either?

2)  Do men (either galactorrheaic or otherwise) produce oxytocin in response
    to nipple stimulation?

3)  Can a galactorrheaic man's "milk" supply increase following intensive
    suckling?

4)  Can galactorrhea be produced in otherwise normal men without the use
    of drugs?

5)  (and oh yes)  Would a man get up every two hours to change and suckle
    an infant?

Heather Mackinnon

hollombe@ttidca.TTI.COM (The Polymath) (03/01/88)

In article <42982@ti-csl.CSNET> dnichols@mips.UUCP (Dan Nichols) writes:
>In article <1948@ttidca.TTI.COM> hollombe@ttidcb.tti.com (The Polymath) writes:
>>... The La Leche League ...
>>... routinely asks if the father would like to breast-feed in
>>cases where the mother can't or won't.  

>This is the second time I have seen Jerry mention this. ...
>My fiancee and I have both tried to find out more about this from the La
>Leche League with NO luck whatsoever. They wouldn't even talk to me. The
>local rep told my fiancee she'd never heard of such a thing ...
>... They basically denied any
>knowledge of this being feasible.

I suppose I should explain my source on this.  In the course of getting my
Clinical Psych.  Master's I took a course in Developmental Psychology.
The professor (Patricia Keith-Spiegle, Ph.D.) mentioned that when she
_adopted_ her son she was contacted by a breast-feeding advocacy group,
presumably La Leche League (are there any others?).  When she explained
she had neither desire nor intention to breast feed their next question
was whether her husband would be interested in doing so (he wasn't).

I took that course over ten years ago and her experience was a few years
older than that.  It's quite possible La Leche League's policies have
changed in that time.  I'm sorry if my original wording contributed
further confusion.

However, the original question was whether male breast-feeding is possible
-- not whether it was easy, common, recommended, or healthful -- just
possible.  I think the evidence suggests it is.  Your mileage may vary.

-- 
The Polymath (aka: Jerry Hollombe, hollombe@TTI.COM)   Illegitimati Nil
Citicorp(+)TTI                                           Carborundum
3100 Ocean Park Blvd.   (213) 452-9191, x2483
Santa Monica, CA  90405 {csun|philabs|psivax|trwrb}!ttidca!hollombe